Pesquisando por: "X-rays before " - Fotoarena - Agência de fotojornalismo

2PGJANG Hallux valgus, X-rays before surgery

2R47YDA Diverse male and female surgeons looking at x-rays in operating theatre before surgery

2R47YA8 Diverse male and female surgeons discussing x-rays in operating theatre before surgery

2R47YD8 Diverse male and female surgeons looking at x-rays in operating theatre before surgery

2PPJ8C8 Ultrasonography image of gallbladder with gall stones at upper abdomen. Gallstones concept

2PPJ4D1 Ultrasonography image of gallbladder with gall stones at upper abdomen. Gallstones concept

2KE7CXT Diverse group of surgeons in discussing x-rays in operating theatre before operation

2PPGJ19 Ultrasonography image of gallbladder with gall stones at upper abdomen. Gallstones concept

2PPGJ3K Ultrasonography image of gallbladder with gall stones at upper abdomen. Gallstones concept

2TBR2EX Wilhelm Conrad Röntgen before 1923. Photographed by Nicola Perscheid.

2K7687M Your teeth have really improved. a dentist looking over a patients x-rays before a procedure.

2GKBXY7 A nondestructive inspection specialist from the 910th Maintenance Squadron performs a fluorescent particle inspection for Lt. Gen. Richard W. Scobee, the Chief of Air Force Reserve and Commander, Air Force Reserve Command, and Janis Scobee, Air Force Reserve Command senior spouse, March 7, 2021, Youngstown Air Reserve Station. Nondestructive Inspection specialists identify possible defects in systems and equipment by utilizing tools like x-rays and ultrasound before normal wear and tear can present itself as a dangerous problem, keeping YARS, “Combat ready NOW...for tomorrow's fight!'

2E8MYC6 Dental implantation concept. Dental diseases diagnostics before teeth implantation. The dentist examines panoramic x-rays of the jaws. A visceral surg

2DHWP36 Moses Bringing the Ten Commandments from Mount Sinai (Exodus 34:29), Richard Westall, 1765–1836, British, before 1835, Graphite on medium, smooth, cream wove paper, Sheet: 5 1/8 x 3 1/4 inches (13 x 8.3 cm) and Contemporary drawn border: 7 1/8 x 5 1/4 inches (18.1 x 13.3 cm), clouds, illustration, men, Moses comes down with the new tablets and is awaited by Aaron and the assembled people, who notice that 'his face is shining' (Moses' face is depicted with rays of light or with horns), Old Testament, religious and mythological subject, robe, staff, surprise, tablets, Africa, Mûsa, Gebel

2BTCB1A Pulmonologists comparing lungs x-rays of patient before and after medical treatment in hospital

2BD05FX Female doctor comparing chest x-rays of patient before and after treatment

2K0J9E1 Medical doctors looking at x-rays in a hospital before operation. Healthcare, medical concept

2JJRY72 Medical doctors looking at x-rays in a hospital before operation. Healthcare, medical concept

2H0JTCK Medical doctors looking at x-rays in a hospital before operation. Healthcare, medical concept

RFXNH5 Astrology Alphabet: SUPER NOVA, Amazing brightest burst of star before its extinction, extremely energetic explosion with gamma-ray burst in Universe.

2A5GGP1 Surgeons reading medical history of patient and checking results of his tests and x-rays on led screen before performing surgery

2HW7BG1 Art inspired by Penitent Magdalen kneeling on a rocky ground before a skull and bones, an ointment jar lies in the left foreground, rays of light and winged putti descend from above, ca. 1640–55, Etching, sheet: 8 9/16 x 5 11/16 in. (21.8 x 14.4 cm), Prints, Giulio Carpioni (Italian, Classic works modernized by Artotop with a splash of modernity. Shapes, color and value, eye-catching visual impact on art. Emotions through freedom of artworks in a contemporary way. A timeless message pursuing a wildly creative new direction. Artists turning to the digital medium and creating the Artotop NFT

KCBG84 Penitent Magdalen kneeling on a rocky ground before a skull and bones, an ointment jar lies in the left foreground

KRMP81 The galaxy cluster CL J1001+0220 is the most distant galaxy cluster ever discovered and may have been caught right after birth, a brief, but important stage of cluster evolution never seen before. This composite shows CL J1001+0220 in X-rays from Chandra (purple), infrared data from the UltraVISTA telescope (red, green, and blue), and radio waves from ALMA (green). The discovery of this object pushes back the formation time of galaxy clusters - the largest structures in the Universe held together by gravity - by about 700 million years. Composite X-Ray Radio and Infrared of galaxy cluster CL J

G31FB0 Berlin, Germany, brilliant Moravian Star and Full Moon

P99C0G nurse preparing machinery before operation

3B2GT2Y Oct. 27, 2015 - OUTER SPACE -- 28 Oct 2015 -- This diagram shows how a shifting feature, called a corona, can create a flare of X-rays around a black hole. The corona (feature represented in purplish colors) gathers inward (left), becoming brighter, before shooting away from the black hole (middle and right). Astronomers don't know why the coronas shift, but they have learned that this process leads to a brightening of X-ray light that can be observed by telescopes. The baffling and strange behaviors of black holes have become somewhat less mysterious recently, with new observations from NASA'

HEB9B2 Army Pfc. Christian Jaigua, U.S. Army Veterinary Services technician, injects Brix, a military working dog, with a sedative to calm him before he gets X-rays at the radiology clinic on Joint Base McGuire-Dix-Lakehurst, N.J. Feb. 9, 2015. Brix is getting X-rays due to a condition called chronic lameness, one of the most common reasons military working dogs are retired. Joshua D. King/ Released)

R3T30R starslight - stars before illuminated glass ball

R3D0A8 Light rays and stars

HWD08T A nurse or doctor in clothes OP before an operation. Symbolic photo for work in the hospital, Eine Krankenschwester oder Aerztin in OP Kleidung vor ei

HWD086 A nurse or doctor in clothes OP before an operation. Symbolic photo for work in the hospital, Eine Krankenschwester oder Aerztin in OP Kleidung vor ei

HWD087 A nurse or doctor in clothes OP before an operation. Symbolic photo for work in the hospital, Eine Krankenschwester oder Aerztin in OP Kleidung vor ei

HWD085 A nurse or doctor in clothes OP before an operation. Symbolic photo for work in the hospital, Eine Krankenschwester oder Aerztin in OP Kleidung vor ei

HEACAG Maj. Brent Waldman, 628th Medical Group Dental Clinic general dentist, and Army Capt. Cynthia Fallness, Joint Base Charleston Veterinary Clinic officer in charge, review Shark's X-Rays before a root canal and teeth cleaning Feb. 20, 2013, at JB Charleston - Air Base, S.C. Shark is a Military Working Dog assigned to the 628th Security Forces Squadron and works on both the Air Base and Weapons Station at JB Charleston. Senior Airman Dennis Sloan)

R3D3C9 Background with ligths rays and stars

KRJDDR A long Chandra observation of Tycho has revealed a pattern of X-ray stripes never seen before in a supernova remnant. The stripes are seen in the high-energy X-rays (blue) that also show the blast wave, a shell of extremely energetic electrons. Low-energy X- rays (red) show expanding debris from the supernova explosion. The stripes, seen to the lower right of this composite image that includes optical data from the Digitized Sky Survey, may provide the first direct evidence that a cosmic event can accelerate particles to energies a hundred times higher than achieved by the mos

2WDTTXX Crepuscular sun rays over the Mittens & Merrick Butte before dawn in the Monument Valley Navajo Tribal Park in Arizona.

3AYBTJM Jan 22, 2010 - Two spectacular tails of X-ray emission have been seen trailing behind a galaxy using the Chandra X-ray Observatory. A composite image of the galaxy cluster Abell 3627 shows X-rays from Chandra in blue, optical emission in yellow and emission from hydrogen light, known to astronomers as 'H-alpha', in red. The optical and H-alpha data were obtained with the Southern Astrophysical Research (SOAR) Telescope in Chile. At the front of the tail is the galaxy ESO 137-001. The brighter of the two tails has been seen before and extends for about 260,000 light years. The detection of the

3AE6P0E Aug. 13, 2009 - Inglewood, California, USA - JAYDA THOMPSON, 5, sits with her mother, LATOYA EDWARDS, as DR. RICHARD F. LEE reaches for the Novocaine during Tennessee-based Remote Area Medical's 'LA Expedition.' RAM, which provides free health care to those in need, is hosting the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes

3AE6P03 Aug. 13, 2009 - Inglewood, California, USA - Tennessee-based Remote Area Medical, which provides free health care to those in need, hosts the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes screenings, dental cleanings, extractions, fillings, root canals and eye exams, including prescription glasses made on site (Credit Image:

3AE6NY1 Aug. 13, 2009 - Inglewood, California, USA - Tennessee-based Remote Area Medical, which provides free health care to those in need, hosts the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes screenings, dental cleanings, extractions, fillings, root canals and eye exams, including prescription glasses made on site (Credit Image:

3AE6NYB Aug. 13, 2009 - Inglewood, California, USA - Tennessee-based Remote Area Medical, which provides free health care to those in need, hosts the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes screenings, dental cleanings, extractions, fillings, root canals and eye exams, including prescription glasses made on site (Credit Image:

3AE6P0M Aug. 13, 2009 - Inglewood, California, USA - Women look for new glasses during Tennessee-based Remote Area Medical's 'LA Expedition.' RAM, which provides free health care to those in need, is hosting the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes screenings, dental cleanings, extractions, fillings, root canals and eye exam

3AE6P1J Aug. 13, 2009 - Inglewood, California, USA - Freshly autoclaved dental instruments at Tennessee-based Remote Area Medical's 'LA Expedition.' RAM, which provides free health care to those in need, is hosting the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes screenings, dental cleanings, extractions, fillings, root canals and e

3AE6NYJ Aug. 13, 2009 - Inglewood, California, USA - BRUNETTA JONES awaits dental work during Tennessee-based Remote Area Medical's 'LA Expedition.' RAM, which provides free health care to those in need, is hosting the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes screenings, dental cleanings, extractions, fillings, root canals and e

3AE6P05 Aug. 13, 2009 - Inglewood, California, USA - LAURA DIXON gives DARRIN BLAKE an eye chart test during Tennessee-based Remote Area Medical's 'LA Expedition.' RAM, which provides free health care to those in need, is hosting the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes screenings, dental cleanings, extractions, fillings, ro

3AE6P17 Aug. 13, 2009 - Inglewood, California, USA - LORRAINE PETERS awaits medical care during Tennessee-based Remote Area Medical's 'LA Expedition.' RAM, which provides free health care to those in need, is hosting the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes screenings, dental cleanings, extractions, fillings, root canals and

3AE6P2D Aug. 13, 2009 - Inglewood, California, USA - JAYDA THOMPSON, 5, watches as her mother undergoes dental work during Tennessee-based Remote Area Medical's 'LA Expedition.' RAM, which provides free health care to those in need, is hosting the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes screenings, dental cleanings, extractions

3AE6NY8 Aug. 13, 2009 - Inglewood, California, USA - BRUNETTA JONES awaits dental work during Tennessee-based Remote Area Medical's 'LA Expedition.' RAM, which provides free health care to those in need, is hosting the largest free health care event in the U.S. from August 11-18 at the LA Forum, former home of the Los Angeles Lakers. It is estimated that before the week is over, volunteer professionals will provide more than 8,000 patients with medical services such as physical exams, mammography, PAP smears, chest x-rays, diabetes screenings, dental cleanings, extractions, fillings, root canals and e

GB2B6E One of the Great British Olympic team's canoes is x-rayed before being loaded into crates at British Airways' World Cargo centre at Heathrow Airport.

3AMD1YK Dec. 6, 2007 - Dr. Pasquale Montesano studies X-rays of Perry Anderson's spine before surgery at Sutter Memorial Hospital in Sacramento, California, October 23, 2007. Dr. Montesano uses stem cells harvested from donor cadavers in spine surgery. (Bryan Patrick/Sacramento Bee/MCT) (Credit Image: © Bryan Patrick/MCT/ZUMAPRESS.com)

3AFWFK7 2 of 2..HT 256268 FOUN BACK 2..CAPTION: (12/14/2006 Spring Hill) L-R: Radiographer Technician Margaret Merillo, 50, of Spring Hill adjusts patient Henry Wooten, 72, of Spring Hill on the X-ray table before taking x-rays of his spine to show the results of a surgical procedure performed the week before by orthopedic surgeon Dr. Michael Higgins. Higgin's procedure, designed to help those with back fractures or osteoporosis, involves making a small incision in the back of the patient and inserting a balloon into the spine which is then filled with a sort of cement. (Credit Image: St Petersburg Ti

DP5BY8 Sep 11, 2006; Sacramento, CA, USA; Marlene Battimarco (rt), a manager at the primary care center has been doing tuberculosis chest x-rays as well as other needed x-rays Monday afternoon while staff is on strike at the County Primary Care Complex. Battimarco loads film into the x-ray machine before filming Auraro Barraza's knees. The department is doing about 1/ 3 of the normal work

3AM7Y0K May 16, 2006 - U.S. - Zachary Morriss' X-rays show his spine before, left, and after scoliosis surgery. (Kevin Kreck/Colorado Springs Gazette/KRT) (Credit Image: © Kevin Kreck/mct/ZUMAPRESS.com)

3A9X3T6 Feb 10, 2006; Detroit, MI, USA; FILE PHOTO: Feb 04, 2006; Dentists give free dental services to low-income children as part of the American Dental Association's 'Give Kids a Smile' campaign. Dr. JAMES WRIGHT, past president of the Oakland County Dental Society, looks at x-rays before filling a boy's cavity. Mandatory Credit: Photo by Jim West/ZUMA Press. (©) Copyright 2006 by Jim West

AFJ167 Surgical team reviews x rays in operating room before kidney transplant

AFJ164 Surgical team reviews x rays in operating room before kidney transplant

AFJ163 Surgical team reviews x rays in operating room before kidney transplant

ADN0D1 Surgical team reviews x rays in operating room before kidney transplant

ADN0CE Surgical team reviews x rays in operating room before kidney transplant

ADN0CC Surgical team reviews x rays in operating room before kidney transplant

3AF8YYM The before (left) and after (right) X-rays of Gabriela Diaz Lopez (cq), 14, show the vast imrpovement of her spine as a result of scoliosis surgery performed by Dr. Clinton Davis (Credit Image: St Petersburg Times/ZUMAPRESS.com)

3AFJ5D8 Dr. Sam Roberts looks at the dental x-rays of his patient Wanda Siler as he checks her out during a visit to his practice Wednesday, August 20, 2003 in Elkins, WV. Ms. Siler was worried about a bump in her mouth because her brother had throat cancer. She wanted to see her physician before going to a dentist. (Credit Image: The Washington Times/ZUMAPRESS.com)

DX5R8T A dental assistant in scrubs fits a lead safety apron to a patient before performing an x-ray check on her teeth in Newport Beach, CA.

DX5R8P A dental assistant in scrubs fits a lead safety apron to a patient before performing an x-ray check on her teeth in Newport Beach, CA.

DX5R8N A dental assistant in scrubs fits a lead safety apron to a patient before performing an x-ray check on her teeth in Newport Beach, CA.

DX5R8M A dental assistant in scrubs fits a lead safety apron to a patient before performing an x-ray check on her teeth in Newport Beach, CA.

DX5R8H A dental assistant in scrubs fits a lead safety apron to a patient before performing an x-ray check on her teeth in Newport Beach, CA.

HFEFMT 030221-N-2338M-001 Aboard the Military Sealift Command Hospital Ship USNS Comfort (T-AO 20) Feb. 21, 2003 -- Navy Radiologist Lt. Cmdr. Roy Rice, MC, reviews a digital X-ray before importing it into the ComfortÕs RADWORKS system, a computer program that allows him to send and receive X-rays to and from virtually any ship in the fleet or ashore medical facility. U.S. Navy photo by Journalist 2nd Class Ellen Maurer. (RELEASED) US Navy 030221-N-2338M-001 Navy Radiologist Lt. Cmdr. Roy Rice, MC, reviews a digital X-ray before importing it into the Comfort%%5Ersquo,s RADWORKS system

3AF8CJJ CW 128719 - - DELIVER TO: North of Tampa - - 9/18/2001 - - Carrollwood - - CAPTION INFO: Photos of the Before X-Rays of 13-year-old Tim Riley's back prior to his December 2000 surgery to correct a scoliosis condition. Riley has steadily recuperated and returned to golf. He placed first in a tournament at Disney in July and holds an excellent - 4 handicap. .- - Times Photo by: Mike Pease - - Story By: Gershman - - SCANNED BY: mp - - RUN DATE: (Credit Image: St Petersburg Times/ZUMAPRESS.com)

3AF7HMB CW.100647.- DELIVER TO:.Advance Desk.- 3/8/2000..Oldsmar.- CAPTION INFO:.Tara Wall (Cq) of H.O.P.E. Farm has a quiet moment with Ben's Little Brother the day before leg surgery. The thoroughbred stallion was within a half hour of being euthanized when Wall received a phone call from a veterinarian. Wall remembered the Vet saying ''The x-rays are really bad, but I wanted to give you the option''. Without a pause wall said she would take him. Wall's fiance veterinarian Robert McDonald (Credit Image: St Petersburg Times/ZUMAPRESS.com)

2M7TPDN SSGT David A. Gonzales, Non-destructive Inspection, 316th Field Maintenance Squadron, measures for the correct distance before taking x-rays of a piece of equipment to find possible cracks in it. Base: Yokota Air Base Country: Japan (JPN)

E0YHN6 Jun. 06, 1970 - Celebrating 100 Years of Polo in Great Britain, Prince Philip in Fall. Wearing 1870polo dress at Windsor yesterday, Prince Philip and Earl Mountbatten acted as umpires during a match between the 9/12 Lancers and the Royal Hussars- commemorating 100 years of Polo in Britain. Later in the afternoon Price Philip fell during a match. He tore ligaments in his right shoulder and was taken to hospital for x rays, later he was allowed to return to Windsor Castle. Photo Show: Prince Philip in 1870 Polo dress gives instruction to one of the teams before the start of the match yesterday.

3AY7WPW A serene figure of a woman adorned with a halo and intricate patterns, her hands clasped in prayer, radiates a sense of tranquility and devotion, surrounded by luminous rays and vibrant embellishments., Virgin of Guadalupe, about 1700, oil on canvas, 82-11/16 x 54-5/16 in., European Painting and Sculpture Before 1800, Classic art with a modern twist reimagined by Artotop

2SWHK5X Two panoramic x-rays of lower wisdom teeth and removed wisdom teeth

2WB0KN4 Two X -rays of bloodstreams and arteries, Alfred George Fryett, c. 1894 - in or before 1904 photomechanical print paper X-ray examination. arteries

2WB0H15 Two X -rays of ribs of a human, Anonymous, c. 1894 - in or before 1904 photomechanical print paper X-ray examination. chest, bust

2WATTMH X -rays of a thumb and a portfolio including scissors, a key and a crown, anonymous, c. 1886 - in or before 1896 photomechanical print paper X-ray examination

2WAK4B3 Twice a wooden box, once seen from the outside and once seen through X -rays from the inside, Albert Londe, c. 1886 - in or before 1896 photomechanical print paper X-ray examination

2WAAJ9X Twice a wooden box, once seen from the outside and once through X -rays seen from the inside with a watch, Dragomir Hurmuzescu, c. 1886 - in or before 1896 photomechanical print paper collotype X-ray examination

2W9YY94 Four magnifications of X -rays, Anonymous, c. 1904 - in or before 1909 photograph photographic support gelatin silver print X-ray examination

2W9YEPY Seven X -rays of different joints and substances, anonymous, c. 1904 - in or before 1909 photograph photographic support gelatin silver print X-ray examination. (human) skeleton

2W9XR01 Twelve X -rays of different joints, anonymous, c. 1904 - in or before 1909 photograph photographic support gelatin silver print X-ray examination. (human) skeleton

2W9XEEP Two X -rays of a knee joint, anonymous, c. 1904 - in or before 1909 photograph photographic support gelatin silver print X-ray examination. bones of the legs

2TAC7A6 Medical doctors looking at x-rays in a hospital before operation. Healthcare, medical concept

2T84YEE Leopold Freund Patient of the dermatologist Leopold Freund with Naevus Pigmentosuset Pilosus, before treatment with X -rays. Silver gelatin glass diapositive 1896 or later

2RP2MAT Wilhelm Conrad Röntgen before 1923

2K769CB Just a little while longer. a dentist looking over a patients x-rays before a procedure.

2CRT8X5 . American X-ray journal . nt and never varies.It is the same from all tubes under allconditions. The distortion is thereforealways present. There is also distor-tion due to position. This may some-times, possibly, be avoided—but rarely unless impervious right angle devicesare used to correct it. In both instan-ces the distortion can be corrected. Itshould always be corrected before thepicture is taken. Unless this distortion,due to divergence of the x-rays and toposition, is corrected the radiograph isnot true and therefore dangerous evi-dence to the operator and also in thecourt of law. The

2CRT7JC . The Röntgen rays in medical work . t may be laid down as a general law, with regard to suchdeformities, that the Eontgen rays confer upon the surgeon thepower of doing, with pretty accurate precision, what he hashitherto been able to do but tentatively—namely, to plan before-hand the mode and extent of his osseous operation. An excellentexample of this general statement will be seen in the accompany-ing illustration (Fig. 76), reproduced by permission of the Lancet. * Traumatic Separation of the Epiphyses, p. 97. t This section has been kindly revised by Mr. H. A. Reeves, F.R.C.S. X On Vari

2CRRJ57 . Archives of physical medicine and rehabilitation . shot, as a beam of cathode rays,away from the cathode, and when sud-denly stopped give rise to x-rays. In the second method, as exempli-fied by the Coolidge and the Lilieijfeldtubes, there is not enough gas left inthe tube to conduct a current, evenwith extremely high voltages, and elec-trons are obtained in an entirely dif-ferent manner. Before beginning a dis-cussion of the new principles underlyingthe use of these tubes, however, it isdesirable to examine in detail the con-struction and the operation of the gasbulb. Footnotes 1. Readers w

2CRRB56 . Archives of physical medicine and rehabilitation . if it had not been operated on,it either would have remained latentwithout increasing in size, or havegrown larger into the group of hugebone cysts which up to the presenttime with one exception have had tobe subjected to amputation. Huge Bone Cysts This group is relatively small and,as before the advent of the x-rays bonecysts were relatively rare but now arerelatively frequent, we have additionalevidence that the tendency of the bonecyst is toward spontaneous ossification. In an unpublished pamphlet which Iwrote in April 1^03 for teachings

2CRR93T . Dental and oral radiography : a textbook for students and practitioners of dentistry . 41-B. The time factor will not be discussed at this junctureexcept to say that with a good x-ray machine, and aproperly regulated tube, good radiograms can be ob-tained by very short exposures in using the intraoralmethod, as the rays need only penetrate a comparatively 92 DENTAL AND ORAL RADIOGRAPHY short distance before reaching the films. In fact, withthe apparatus now available, radiograms can often beobtained by instantaneous exposures. However, instan-taneous exposures are not necessary for good radi

2CRPXME . The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . Fig. 9. Medium-sized static machine, with four revolving plates one metre in diameter. (Rollins.) X-RAY EQUIPMENT 19 which terminal of a static machine will be positive before the machineis started, this is a convenient arrangement. Thomsons (Elihu) Dynamo Static Machine. — This machine is notso much influenced by moisture as the Holtz machine, and it occupiesa smaller space. Induction Coils • The usual form of induction coil consists of a primary

2CRPNXR . The American journal of roentgenology, radium therapy and nuclear medicine . It becomes, therefore, aproblem of great importance in deep x-raytherapy to produce x-rays of short wave-lengths. It has been largely for the pur-pose of calling especial attention to thisfact that I have dwelt so long uponthe elementary problem of deep therapy, -84 The Scientific Basis of Short Wave-Length Therapy before describing our researches in x-rayspectra. 3. The method of measuring the x-raywave-lengths is based upon the researchesof Laue, Friedrich and Knipping, and theBraggs. Figure 2 represents the arran

2CRPM08 . The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . ro. Three weeks before, while eating a smallwalnut, he swallowed a portion of the shell, which lodged apparentlyin the right bronchus. He soon developed pneumonia, which lastedten days. At entrance to the hospital there were no subjective symp-toms except that every morning he coughed, and raised considerablematter on getting up. A physical examination on the right sideshowed general dulness and diminished respiration. November 7. X-Ray Examinatio

2CRPKY5 . The Röntgen rays in medical work . as become too high. An easy method of temporarily lowering atube is to warm it all over with a spirit-lamp flame or before a fire.For warming the tube when it is in action, the operator should 14 THE RONTGEN RAYS IN MEDICAL WORK employ a lamp with a long non-conducting handle to protect him-self from shock and his hands from risk of x-ray burns. A tube whoseresistance is lowered in this way becomes as hard as before as soonas it has cooled ; but prolonged warming of a tube—as, for instanceby baking it in an oven at a high temperature for some hours—willofte

2CRPEF5 . The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . 229. B. F. Epithelioma. Side view before treatment. ing the past six months it began to grow rapidly, and ulcerated in thecentre. There was no pain but some itching. Physical Exaniinatioii. — An area on lower lid of right eye 2 centimetres long by .5 wide. There was some ulceration in the centreand a well-defined lower edge raised above the surface of the skinwhich was indurated. (See page 426.) THERAPEUTIC USES OF THE X-RAYS 429 Dr. Mallory exami

2CRPEEW . The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . Fig. 229. B. F. Epithelioma. Side view before treatment. ing the past six months it began to grow rapidly, and ulcerated in thecentre. There was no pain but some itching. Physical Exaniinatioii. — An area on lower lid of right eye 2 centimetres long by .5 wide. There was some ulceration in the centreand a well-defined lower edge raised above the surface of the skinwhich was indurated. (See page 426.) THERAPEUTIC USES OF THE X-RAYS 429 Dr. Mallory