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 (1901)
Williams, Francis H. (Francis Henry), 1852-1936 · New York, Macmillan · leaf 52
ate to the negative wire. A convenient methodof ascertaining which is the positive pole is to place a strip of moistened X-RAY EQUIPMENT 21 litmus paper upon a dry board or other insulating material, and to touchone end of the strip with a wire from one terminal of the circuit, andthe other end… … Fig. II. Heinze interrupter. C, end of platinum wire; F, earthenware jar;S, sulphuric acid solution. (Rollins.) A platinum rod is moved up and down by a small motor through the opening of a glass tubeimmersed in dilute sulphuric acid, the rod being the positive terminal through which the…
Radiography · X-rays
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
