BIBLIOGRAPHY 231 



60. Wiesner. Biologie der Pflanzen. A. Holdner, Wien, 1901. Marks 



10.20. 



61. Ludwig. Lehrhuch der Pflanzenhiologie. Enke, Stuttgart, 1895. 



Marks 16. 



62. Knuth-Davis. Handbook of Flower Pollination. Clarendon Press, 



Oxford, Vol. I, 1906. $6.75. 



63. Beal. Seed Dispersal. Ginn & Company, Boston, 1898. 35 cents. 



64. Darwin, Charles. Insectivorous Plants. D. Appleton & Company, 



New York, 1900. $2.00. 



EVOLUTION 



**66. Darwin, Charles. The Origin of Species. D. Appleton & Company, 

 New York, 1906. $2.00. 



67. De Vries. Species and Varieties : their Origin by Mutation. Open 



Court Publishing Companj, Chicago, 1905. $5.00. 



68. Bailey. The Survival of the Unlike. The Macmillan Company, 



New York, 1899. $2.00. 

 ^. Darwin, Charles. Variation of Animals and Plants under Domesti- 

 cation. D. Appleton & Company, New York, 1900, two volumes. 

 $5.00. 



70. Campbell. Lectures on the Evolution of Plants. The Macmillan 



Company, New York, 1899. $1.25. 



ECONOmC BOTANY 



71. United States Department of Agriculture.. Procure lists of publica- 



tions from Superintendent of Documents, Government Printing 

 Office, Washington, D.C. Important papers appear frequently, 

 which may be obtained at small cost. 



72. Agricultural Experiment Stations. These issue many important 



circulars, bulletins, and reports. For addresses of the staff pro- 

 cure the Organization Lists of Agricultural Experiment Stations 

 from the Superintendent of Documents (address above). Price 

 of list, 10 cents. 

 **73. Bailey. Plant Breeding. The Macmillan Company, New York, 

 1906. $1.25. 

 74. Tschirch. Angewandte Pfanzenanatomie, Erster Band. Urban & 

 Sohwarzenberg, Wien, 1889. $4.50. 



