In Vol. 18, No. 2, November 20, 1934, page 152, the first word in the eighth line from the foot of the page, for "stop-cock" read "stop-clock."
On the same page, in the third paragraph, the thirteenth line from the top, for 15.75 cm. read 15.75 mm.
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Copyright, 1934, by The Rockefeller Institute for Medical Research
1934
