Authorities. 1 , Dr. S. Swan, proving with the 15th dil., obtained from Dr. Reisig ( Note: The preparation was doubtless, sour milk, and not pure lactic acid), drop doses every hour for ten hours, N. Am. J. of Hom., 1871, p. 569; 2 , same, effects of 30th, in a lady-patient, reported by Dr. B. Fincke; 3 , same, effects of 30th, in Dr. B. Fincke ( Nos . 4 to 18 , provings by T. F. Allen, with pure acid, N. Y. J. of Hom ., 1, p. 337); 4 , J. H. Buffum, two doses of 30th dil.; 5 , W. H. T., 30th dil.; 6 , F. R., 30th dil.; 7 , R. S. M., 30th dil.; 8 , C. A. S., 30th dil.; 9 , J. P. W., 30th dil.; 10 , J. R. P., 30th dil.; 11 , B. W., 30th dil.; 12 , A. B. C., 30th dil.; 13 , D. A. Babcock, 30th dil.; 14 , Dr. Simmons, Jr., 30th dil.; 15 , A. W. J., two provings, each, with one dose of 30th dil.; 16 , F. R., several doses of 1st dil.; 17 , Blanck, several doses of 1st dil.; 17 a , same, second proving; 18 , Dr. S., one dose of the 1/10th; 19 , Miss Sarah Tremper, proving with 200th dil., drop dose every hour till effects appeared, from MS. by Dr. Swan., N. Y. J. of Hom., 1, 337; 19 a , same, proving with several doses of 1m; 19 b , same, several doses of 10m; 20 , a man suffering from diabetes took 15 drops four times a day; doses doubled next day; after three days, repeated the experiment; from Foster's Clinical Med., 1874, "the production of acute rheumatism by lactic acid;" 20 a , same, effect of 75 drops in course of twenty-four hours; 20 b , same, 30 drops in one forenoon; 21 , effects in another case of diabetes; from Foster.