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May 25, 1918


JAMA. 1918;70(21):1560-1561. doi:10.1001/jama.1918.02600210049022

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To the Editor:  —I have watched with much interest the process of determining who are and who are not fit for the aviation service: what makes for and what against, a good aviator.Unquestionably the aviator must be high in equilibration efficiency, and, no doubt, the semicircular canals have much to do with this, as do also the eyes.It is my belief, however, that there is a certain something aside from both of these that is very important which we do not grasp at present—a certain sense of direction as well as equilibration, of which some individuals are more possessed than others, and which is susceptible to a high state of cultivation—the sense by which he who possesses it may return from a long ramble in strange forests or mountains and sit down and draw a very true map of the course he has taken; or at the end

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