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To the Editor:
—At a meeting of the Chemical Section of the Chicago Academy of Sciences, held two months ago, Prof. M. Delafontaine of this city, presented some facts regarding tests of the substances known as "cerebrine" and "medulline," and somewhat more in detail than in the note in the Journal of August 26. This work having been criticised in certain quarters, both as regards methods and conclusions, I thought it worth while to make a new examination of the question, avoiding as far as possible sources of error. I accordingly obtained from a well-known Chicago druggist a bottle of each of the two Hammond preparations which I tested, with results agreeing fully with those of Prof. Delafontaine. These tests I considered, however, only as preliminary to more extended ones. For the fuller tests I secured through one of our leading wholesale drug houses four bottles of "cerebrine" and four
Long JH. Analyses of "Cerebrine" and "Medulline.". JAMA. 1893;XXI(27):1015. doi:10.1001/jama.1893.02420790023010
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