Note 40 — SECTION V NOTES ON TOBACCO
Reading edition
Garner, W. W.: The Relation of Nicotin to the Burning Quality of Tobacco, U. S. Department of Agriculture, Bureau of Plant Industry, Bulletin No. 141, Sept. 30, 1909, p. 15; A New Method for the Determination of Nicotin in Tobacco, U. S. Department of Agriculture, Bureau of Plant Industry, Bulletin No. 102, July 6, 1907, p. 12.