TWENTIETH CENTURY TEXT-BOOKS OF BOTANY. 



By JOHN M. COULTER, A.M., Ph.D., 

 Head of Department of Botany, Univer:;ity of Chicag^o. 



Plant Relations. A First Book of Botany. i2mo. 

 Cloth, li.io. 



■'Plant Relations " is the first part of the botanical section of P.iology, and, as its 

 title indicates, treats what might be termed the human interests of plant life, the con- 

 ditions under which plants grow, their means of adaptation to environments, how 

 they protect themselves from enemies of various kinds in their struggle for existence, 

 their habits individually and in family groups, and their relations to other forms of 

 life — all of which constitute the economic and sociological phases of plant study. 



Plant Structures. A Second Book of Botany. T2mo, 



Cloth, $1.20. 



This volume treats of the structural and morphological features of plant life and 

 plant growth. It is intended to follow " Plant Relations," but may precede this 

 book, and either may be used independentlj' for a half-year's work in botanical study. 



Plant Studies. An Elementary Botany. i2mo. Cloth, 



$1.25.^ . . . ■ . 



This book Is designed for those schools in which there is not a sufficient allot- 

 ment of time to permit the development of plant Ecology and Morphology as outlined 

 in "Plant Relations" and "Plant Structures," and yet which are desirous of im- 

 parting instruction from both points of view. 



Plants. A Text-Book of Botany. i2mo. Cloth, $1.80. 



Many of the high schools as well as the smaller colleges and seminaries that 

 devote one year to botanical work prefer a single volume covering the complete course 

 of study. For their convenience, therefore, " Plant Relations," and "Plant Struc- 

 tures" have been bound together in one book, under the title of " Plants." 



AnatyUcat Keys to Flo^wering Plants. I2mo. Limp Cloth, 

 Northern States. By Professor Coulter. 25c. 



Pacific Slope. By Prof. W. L. Jepson, University of 



California. 45'c. 



Rocky Mountain Regions. By Prof. Aven NFelson, 

 University of Wyoming. 45c. 



These Kejs may be used with any text-book of botany, but they h.'ve references 

 to the text of Professor Coulter's books. 



A Laboratory Manual of Botany. By Otis W. Cald- 

 well, Ph.D., State Normal School, Charleston, 111. 50c. 



D. APPLETON AND COMPANY, 



NEW YORK. BOSTON. CHICAGO, LONDON. 



