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To the Editor:—
In The Journal, June 12, the Vienna correspondent reports on "Microscopic Representation of the Surfaces of Living Organs" and writes (p. 2054) "Thus far, however, enlargements up to a magnification of only about 30 diameters have been practicable for the observation of surfaces, and the instruments did not permit inspection of individual cells or their constituents. Dr. Pick, who holds the chair of anatomy at Vienna, devised a new apparatus by means of [which] he is able to obtain magnifications of 800 diameters."Knowing from personal experience of the high standard with which you conduct The Journal and also of the exactness for which you are striving in your reports, I wish to call to your attention the misrepresentations in the sentences quoted. A decade ago three instruments were devised, one by Vonwiller, one by me, and one by Ellinger and Hirt, to suit various needs in
Singer E. MICROSCOPIC REPRESENTATION OF THE SURFACES OF LIVING ORGANS. JAMA. 1937;109(3):226. doi:https://doi.org/10.1001/jama.1937.02780290048020
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