Note 224 — FOREWORD (continued 2)
Reading edition
The testing and standardizing of arsphenamin is being done by the Hygienic Laboratory, U. S. Public Health Service. For chemical tests see reprint 472, Public Health Reports. For a review of the patent literature see article by H. F. Lewis, J. Indust. Engin. Chem., Feb. 1, 1919, p. 141.