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the habit of signaling becomes automatic

Fig. 7. — Manual signal system for use during operations:

(each image cropped to square, realigned; identifying figures removed, but should be clear enough)
Eugene H(illhouse). Pool (1874-1949 *) and Frederick W. Bancroft. “Systematization of a Surgical Service.” The Journal of the American Medical Association 49:19 (1919) : 1599-1603
University of Michigan copy, digitized October 5, 2012
different University of California copy, digitized May 13, 2011, opens to same (but less sharp) image here

epigram ex p 1603

25 March 2016

signals; manual vocabulary; E. H. Pool and F. W. Bancroft, “Systematization of a Surgical Service” (1919)