420 APPENDIX 



STEVENS, W. C. Plant Anatomy from the Standpoint of the Develop- 

 ment and Functions of the Tissues. P. Blakiston's Sons & Co., 

 1911. 



CHAPTERS VIII and IX 



BERGEN, J. Y. and CALDWELL, 0. W. Practical Botany. Ginn & 



Co., 1911. 

 BERGEN, J. Y. and DAVIS, B. M. Principles of Botany. Ginn & 



Co., 1906. 

 CAMPBELL, D. H. A University Textbook of Botany. The Mac- 



millan Co., 1907. 

 COULTER, J. G. Plant Life and Plant Uses. American Book Co., 



1913. 

 COULTER, J. M. The Evolution of Sex in Plants. University of 



Chicago Press, 1914. 

 COULTER, J. M., BARNES, C. R. and COWLES, H. C. Textbook 



of Botany. American Book Co., 1910. 

 DENSMORE, H. D. General Botany. Ginn & Co., 1920. 

 GAGER, C. S. Fundamentals of Botany. P. Blakiston's Son & Co,, 



1916. 

 GANONG, W. F. Textbook of Botany for Colleges. The Mac- 



millan Co., 1917. 

 GRAY, ASA. Manual of Botany. 7th edition. American Book 



Co., 1908. 

 STRASBURGER'S Textbook of Botany. 5th English Edition. The 



Macmillan Co., 1921. 



CHAPTERS X-XV 



BEDDARD*, F. E. Earthworms and their Allies. Cambridge Uni- 

 versity Press, 1901. 



Cambridge Natural History. Ten volumes. S. F. Harmer and 

 A. E. Shipley, Editors. The Macmillan Co., 1895. 



CONN, H. W. and BUDINGTON, R. A. Physiology and Hygiene. 

 Silver, Burdett & Co., 1909. 



DREW, G. A. 'Invertebrate Zoology. 3d edition, revised. W. B. 

 Saunders Co., 1920. 



