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IOWA ACADEMY OF SCIENCE 
BIBLIOGRAPHY OF THE MOST IMPORTANT REFERENCES. 
Agricultural Bacteriology. Conn. 
Agriculture. Storer. 
Alkaloids, Effect of, on the germination and development of seeds. Ex. S'ta. Rec. 6, p. 903. 
Book of Rothamstead Experiments. Hall. 
Braezeale, J. F. Effect of certain solids upon the growth of seedlings in water culture. 
Bot. Gaz. 41, pp. 54-63. 
Bureau of Plant Industry. Bull. 1. 
Bureau of Soils. Bulls. 28, 35, 36, 40, 47. Circ. 18. 
Cameron, F. K. Application of the Theory of Solution to the Study of Soils. Rept. 64, 
U. S. Dept. Agri. 
Chester, F. D. Del. Ex. Sta., Bull. 66. 
Clover sickness. Yearbook, U. S. Dept. Agri.,. 1897, p. 493. 
Commercial Organic Analysis. Allen. 
Cornell, N. Y., Ex, Sta. Bull. 240. Geo. F. Atkinson. 
Curtis, C. C. Turgidity in mycelia. Bull. Torr. Bot. Club, 27. 1. 
Dandeno. Relation of Mass Action to Toxicity. Am. Jour. Sci., 17, p. 437. 
Dictionary of the active principles of Plants. Sohn. 
Experiment Station Record. 2, p. 317. 5, p. 3. 6, p. 284. 15, p. 20. 16, p. 851. 18, p. 
25, 127, 348, 542. 19, p. 22. 
Farmers’ Bulletins, 192, 214, 245. 
Fischer. The Structure and Functions of Bacteria. 
Halstead, B. D. N. J. Ex. Sta. Bull. 135. 
Heald, F. D. On the Toxic Effect of Dilute Solutions of. Acids and Salts upon Plants. 
Bot. Gaz. 22, p. 125. 
Humus on Poisons in Soils.' Effect of. Ex Sta. Rec. 16, p. 228. 
Illinois Ex. Sta. Bull. 93, 99. Circ. 68, 96. 
Iowa Ex. Sta. Bull. 82, 98. 
Jensen, G. H. Toxic Limit and Stimulation Effect of some Salts and Poisons on Wheat. 
Bot. Gaz. 43, Jan., 1907. 
Kahlenburg and True. On the Toxic Action of Dissolved Salts. Bot. Gaz. 22, p. 81. 
Kearney and Cameron. Report 71, U. S. Dept., Agri. 
Livingston, B. E. The Role of Diffusion and Osmotic Pressure in Plants. The University 
of Chicago Press.- 1903. 
Loew, F. A. The Toxic Effect of H and OH ions on seedlings of Indian Corn. Science H 
18, p. 304. 1903. 
Loew, J. The Physiological Role of Mineral Nutrients. Bull. 18, Div. Veg. Phys. and 
Path. U. S. Dept. Agri. 
Manures and Manuring. Aikman. 
Mayo, N. S. Proc. Am. Vet. Med. Assn., 1902, p. 194. 
Physics of Agriculture. King.. 
Plant Physiology. Peirce. 
Soils. Hilgard. 
True, R. H. The Toxic Action of a Series of Acids and their Sodium Salts on Lupinus 
Albus. Am. Jour. Sci. IV, 9, p. 183. 
True, R. H. The Physiological Action of Certain Plasmolyzing Agents. Bot. Gaz. 26, 
1898. 
Wallaces’ Farmer. What Barnyard Manure does for the Soil. Oct. 12, 1906. 
Toxin. Editorial. Feb. 8, 1907. 
Velvet Weed and Cockleburs. June 7, 1907. 
Wisconsin Ex. Sta. An. Rept. 1893. 
