Rotatory crossgraphy (rotatory cross section radiography) of the neck.

(Received for publication July 2, 1952) The apparatus1)2)3)4) employed for the present study of rotatory crossgraphy was the same as was described in the report published in a preceding number of this"Journal. The exposure here continued 9 seconds, under the conditions of 57 kv of the tube terminal, 40 ma in the tube current, with the-focus-body-rotation table distance of 98 cm. and the body table-film table distance of 50 cm.