708 PHARMACEUTICAL BOTANY 
Fernald, M. L. Persistence of plants in unglaciated areas of Boreal America. 
Memoirs of the American Academy of Arts and Sciences. 15: No. 3, 2a9= 
342, 1925. 
Grisebach, A. Die Vegetation der Erde nach ihrer Klimatischen anordnung. 
2v. 2te. Aufl. W. Engelmann, Leipsig, 1884. 
Hilgard, E. W. Soils, their formation, properties, composition, and relation to 
climate and plant growth. Macmillan and Co., New York, 1906. 
Knuth, P. Handbook of flower pollination. Transl. by J. R. A. Davis. 3v. 
Clarendon Press, Oxford, 1906-1909. 
Scharff, R. F. Distribution and origin of life in America. Macmillan Co., New 
York, 1912. 
Schimper, A. F. W. Pflanzen-Geographie auf Physiologischer Grundlage. G. 
Fischer, Jena, 1898. 
Warming, E. and M. Vahl. Ecology of plants. An introduction to the study of 
plant communities. Transl. by P. Groom and I. B. Balfour. Clarendon 
Press, Oxford, 1909. 
Weaver, J. E. and F. E, Clements. Plant Ecology. McGraw-Hill Book Co., 
Inc., New York, 1929. 
PLANT PuysIoLoGy AND PLANT CHEMISTRY 
Detmer, W. Practical plant physiology. Transl. by S.A. Moor. Swan, Sonnen- 
schein and Co., London and Macmillan Co., New York, 1909. 
Duggar, B. M. Plant physiology with special reference to plant production. 
Macmillan Co., New York, 1911. 
Green, J. R. An introduction to vegetable physiology. 3rd ed. J. and A. 
Churchill, London. P. Blakiston’s Son and Co., Phila., TOLL, 
Haberlandt, G. F. J. Physiologie und Okologie. B. J. Teubner, Leipsig, 1917. 
Hass, P., and T. G. Hill. An introduction to the chemistry of plant products. 
3rd ed. 2v. Longmans, Green and Co., 1921 and 1922. 
Henry, T. A. The plant alkaloids. 2nded. J. and A. Churchill, London, 1924. 
Jost, L. Lectures on plant physiology. Transl. by R. J. H. Gibson and supple- 
ment. Clarendon Press, Oxford, 1907 and 1913. 
Maximov, N. A. Textbook of Plant Physiology. McGraw-Hill Book Co., Inc., 
New York, 1930. 
Oppenheimer, C. Die Fermente und ihre Wirkung. 5te Aufl. Issued serially. 
Georg Thieme, Leipsig, 1924- : 
Palladin, V. I., and B. L. Livingston. Palladin’s Plant Physiology. 3rd Amer. 
ed. P. Blakiston’s Son and Co., Phila., 1926. 
Pfeffer, W. The physiology of plants. A treatise upon the metabolism and 
sources of energy in plants. Transl. by A. J. Ewart. 3v. Clarendon Press, 
Oxford, 1900 and 1906. 
Tummann, O. and L. Rosenthaler. Pflanzenmikrochemie. Gebr. Borntrzger, 
Berlin, 1931. 
HortTICcULTURE AND AGRONOMY 
Bailey, L. H. Standard Cyclopedia of Horticulture. 6v. Macmillan Co., 
New York, 1900-1917. 
Bailey, L. H. A manual of cultivated plants. Macmillan Co., New York, 1924. 
