430 TEXTBOOK OF BOTANY 



Campbell : The Structure and Development of Mosses and Ferns. The 



Macmillan Company. 



Clute : Our Ferns in Their Haunts. Frederick A. Stokes Company. 

 Coulter, Barnes, and Cowles : A Textbook of Botany, vol. i, pp. 155-170. 



American Book Company. 

 Cox : Eradication of Ferns from Pasture Lands in the Eastern United 



States. Farmers' Bulletin 687, U. S. Department of Agriculture. 

 Curtis : Nature and Development of Plants, 3d edition, chap. viii. Henry 



Holt and Company. 

 Gager : Fundamentals of Botany, chaps, xii-xiii. P. Blakiston's Son and 



Company. 

 Sedgwick and Wilson: An Introduction to General Biology, chaps. 



viii-x. Henry Holt and Company. 

 Strasburger, Jost, Schenck, and Karsten : A Textbook of Botany, 4th 



English edition, pp. 442-446, 449-454. The Macmillan Company. 

 Underwood : Our Native Ferns and their Allies. Henry Holt and 



Company. 

 Wright : Flowers and Ferns in their Haunts. The Macmillan Company. 



CHAPTER XI 



Coulter and Chamberlain : Morphology of Gymnosperms. D. Appleton 

 and Company. 



Gager : Fundamentals of Botany, chap. xxvi. P. Blakiston's Son and 

 Company. 



Gray : New Manual of Botany, 7th edition. American Book Com- 

 pany. (Contains a list and descriptions of the gymnosperms 

 growing wild in the central and northeastern United States and 

 the adjacent parts of Canada.) 



Hall and Maxwell : Uses of Commercial Woods : Pines. Bulletin 99, 

 Forest Service, U. S. Department of Agriculture. 



Mohr: Timber Pines of the United States. Bulletin 13, -Forest Service, 

 U. S. Department of Agriculture. 



Penhallow : A Manual of the North American Gymnosperms. Ginn and 

 Company. 



Schorger and Betts : The Naval Stores Industry. Bulletin 229, U. S. 

 Department of Agriculture. 



CHAPTER XII 



Bailey : The Standard Cyclopedia of Horticulture, 2d edition, vol. i , 

 pp. 458-463. The Macmillan Company. 



