TWENTIETH CENTURY TEXT-BOOKS OF BOTANY. 
By JOHN M. COULTER, A.M., Ph.D., 
Head of Department of Botany, University of Chicago. 
A Text-Book of Botany. 12mo. Illustrated. $1.25. 
Plant Relations. A First Book of Botany. 12mo. 
Cloth, $1.10. 
“Plant Relations ”’ is the first part of the botanical section of Biology, and, as its 
sitle indicates, treats what might be termed the human interests of plant lite, the con- 
ditions under which plants grow, their means of adaptation to environments, how 
the protect theinselves from enemies of various kinds in their struggle for existence, 
their habits individually and in family groups, and their relations to other forms of 
‘ife—all of which constitute the economic and sociological phases of plant study. 
Plant Structures. A Second Book of Botany. 12mo. 
Cloth, $:.20. 
This volume treats of the structural and morphological features of plant life and 
aa growth, It is intended to follow ‘‘Plant Relations,” but may precede this 
wok, and either may be used independently for a half-year’s work in botanical study. 
sa Studies. An Elementary Botany. 12mo. 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. s2mo. Cloth, $1.80. 
Many of the high schools as w2ll as the smaller colleges and seminaries that 
devote one yer 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.” 
Analytical Keys to Flowering Plants. 12mo. Limp Cloth. 
Northern States. By Proressor CouLTER. 25¢. 
Pacific Slope. By Pror. W. L. Jepson, University of 
California. 45c. 
Rocky Mountain Regions. By Pror. Aven NELson, 
University of Wyoming. 5c. 
These Keys may be used with any text-book of botany, but they have references 
to the text of Professor Coulter’s books. 
A Laboratory Manual of Botany. By Ortts W. Catp- 
WELL, Ph.D., State Normal School, Charleston, Ill. soc. 
D. APPLETON AND COMPANY, 
NEW YORK. BOSTON. CHICAGO, LONDON. 
, 
, 
