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David Murray Cowie, M.D.; John Purl Parsons, M.D.
Arch Intern Med (Chic). 1921;27(1):136. doi:10.1001/archinte.1921.00100070139011.
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To the Editor:  —Our paper on Studies on Blood Sugar: The Effect of Blood Constituents on Picrate Solutions, published in the Archives of Internal Medicine, September, 1920, p. 333, contained a typographical error, p. 338, Table 11. Heading of first column should read "Size of blood sample," not "water sample."We should also like to make the following additions: Reference 4, page 338, after the words "(per liter)" should follow, Van Slyke and Fitz: J. Biol. Chem. 32:497, 1917.After the words, "the acetone blows off," page 338, should follow an asterisk with this footnote: "Samples run with 100, 75, 50, 25, 15 mg. to 100 c.c. of water were practically black; no attempt was made to read them." This sentence should be omitted from the asterisk reference on page 339.A question has been asked as to why we got the readings 0.040 in our blank determinations. This is


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