' Announcing the puhlkatign of 
An Introduction to 
CYTOLOGY 
By LESTER W. SHARP 
Assistant Professor of Botany, Cornell University 
452 pages, 6x9, 159 illustrations, $4.00 
McGraw-Hill Agricultural and Biological Publications 
A book for students of the biological sciences who desire a means of becoming 
more readily acquainted with the literature and problems of cytology. 
Throughout the book attention is focussed upon the protoplast; the cell 
wall is given only brief consideration, since it plays a relatively minor role 
in the processes of particular interest to the cytologist at the present time. 
Because of their fundamental importance in connection with the problems; 
confronting the geneticist, the phenomena of nuclear division, chromosome 
reduction, atid fertilization are described with considerable fullness, and 
their relation to the problems of heredity is t^aken up in five special chapters. 
Professor Charles J. Chamberlain, of the University of Chicago, says of ' 
this book: 
"Such a book has long been needed by botanists and also by spe- 
cialists in genetics, plant breeding and pathology. Professor Sharp 
has an international reputation as a cytologist. There is no botanist 
in the world better qualified to write such a book." 
Professor R. Emerson, of Cornell, says: 
"It is fortunate that we have in America a cytologist who is 
thoroughly familiar riot only with both plant and animal cytology 
but also with the bearing of cytology on the problems of heredity. 
I regard the chapters on the interrelations of cytology and genetics 
as without exception the best presentation of the subject I have seen." 
Other New Volumes in Our Series of 
McGraw-Hill Agricultural and Biological Publications 
(Dr. Charles V. Piper, Consulting Editor) 
Hayes and Garber— BREEDING CROP PLANTS. ......... 
Fernald— APPLIED ENTOMOLOGY .... 
Thatcher— CHEMISTRY OF PLANT LIFE .... 
Send for copies of these books on approval 
McGRAW-HILL BOOK CO., Inc. 
Penn Terminal Building 
370 Seventh Avenue Nj:W YORK 
$3.50 
3.50 
3-00 
