. American X-ray journal . x-ray purposes. In the laboratory ofthe expert x-ray worker,we will find the coil, ■ I just as well as the Static ■ I machine. but at thepresen 1 time, there arebut three forms of appa-ratus from which tochoose viz : t he Rum-korff or simple form ofinducl ion coil, the Tesla or high induction coil, and portable;and ihe Staiic machine. Vet) early in the history of the x-rayn was found thai we have to deal onlywith the shadows, wilh all the iimita-. You have to look until you see some-thing; and in fact, to the unpracticedeye, the microscope or opthalmoscope is

---

Size: 1022px × 2445px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, bookidamericanxray, bookyear1902