APPENDIX 243 



(3) Essentials of Botany. Boston: Ginn & Co., 1909, $1.20. (Also 



with a brief Flora, $1.50.) 



Bergen, J. Y., and Caldwell, 0. W. : Practical Botany. Boston : Ginn & Co. 

 Bergen, J. Y., and Davis, B. M. : ( 1 ) Principles of Botany. Boston : 



Ginn & Co., 1906, $1.50. 

 (2) Laboratory and Field Manual of Botany (to accompany the 



preceding). Boston: Ginn & Co., 1907, 90 cents. 

 Bessey, C. E.: Botany for High Schools and Colleges. New York: Henry 



Holt & Co., 1880 and later editions, $2,20. 



Britton, N. L.: (1) Manual of the Flora of the Northern States and Can- 

 ada. New York: Henry Holt & Co., 1901, $2.25. 

 (2) North American Trees, being Descriptions and Illustrations 



of the Trees Growing Independently of Cultivation in North 



America, North of Mexico, and /the West Indies. New York: 



Henry Holt & Co., 1908, $7.00. 



Britton, N. L., and Brown, A. : An illustrated Flora of )ihe Northern 

 United States, Canada, etc. New York: Charles Scribner's Sons, 



3 vols., 1896-1898, $4.00 a volume. 

 Caldwell, O. W.: Laboratory 1 Manual of Botany. New York: D. Appleton 



& Co., 1902, 60 cents. 

 Campbell, D. H.: (4) A University Text Book of Botany. New York: 



The Macmillan Co., 1902, $4.00. 

 Clark, C. H. : A Laboratory Manual of Practical Botany. New York: 



American Book Company, 1898, 96 cents. 

 Clute, W. N. : ( 1 ) Our Ferns in Their Haunts, a Guide to all the Native 



Species. New York: F. A. Stokes Co., 1901, $2.00. 

 (2') The Fern Allies of North America, North of Mexico. New York: 



F. A. Stokes Co., 1905, $2.00. 

 Collins, F. S.: Green Algas of the United Stated. Tufts College Studies, 



1909, $3.50. 

 Conn, H. W.: Bacteria, Yeasts, and Molds in the Home. Boston: Ginn 



& Co., 1903, $1.20. 

 Coulter, J. M. : ( 1 ) Manual of the Botany of the Rocky Mountain Region. 



New York: American Book Co., 1885, $1.62. 

 (2) Plants, a Text-book of Botany (combining two books, Plant 



Relations and Plant Structures). New York: D. Appleton 



& Co., 1900. Suggestions for teachers, two pamphets, one 



by O. W. Caldwell, are supplied to teachers with this work, $1.80. 

 Gray, Asa: (2) Field, Forest and Garden Botany. Revised by L. H. 



Bailey. New York: American Book Co., 1868 and later, $1.44. 

 (5) Elements of Botany. New York: American Book Co., 1887 and 



later editions, 94 cents. 



