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Scientific and Applied Pharma- 
cognosy 
By Henry Kraemer, Ph.B. (Chemistry), Ph.M. 
(Pharmacy), Ph.D. (Botany), Professor of 
Pharmacognosy, University of Michigan. 
This volume is intended for the use of students 
in pharmacy, a handbook for the pharmacist in 
practice and a reference book for the food and 
drug analyst. 
vuUitS857 pages. 6 by 9. Extensively Illustrated 
Cloth, 5.00 net 
Applied and Economic Botany 
By Henry Kraemer, Ph.B., Ph.M., Ph.D. 
For students in technical and agricultural schools, 
pharmaceutical and medical colleges, for chem- 
ists, food analysts and for those engaged in the 
morphological and physiological study of plants. 
wut+822 pages. 6 by 9. Hxtensively Illustrated 
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Ascidians of theLittoral Zone of Southern California, by 
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The Subclayian Vein and its Relations in Elasmobranch 
Fishes, by J. Frank Danmiel...........cccccsccscescssescesssearense f.10 
The San Lorenzo Series of Middle California, A Stratigra- 
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Controlled Pollination in Nicotiana, by Thomas H. Good- 
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Revised Edition of 
GENERAL SCIENCE 
By OTIS WILLIAM CALDWELL, Columbia 
University, and WILLIAM LEWIS EFKEN- 
BERRY, University of Kansas. 
The serious question of providing adequate instruc- 
tion in general science for the first year in high school, 
as well as recent important scientific discoveries, is re- 
sponsible for this revised edition. Built upon the gen- 
eral plan of ‘‘Elements of General Science,” in the 
same excellent style and form of composition, this new 
edition contains several additional features: a thorough 
rewriting of the text; numerous new illustrations; a 
set of interesting and important application problems 
in connection with each chapter; the omission of most 
of the discussion on water pressure ; three new chapters 
on electricity ; an increased amount of material on 
household industries and arts; a new chapter dealing 
with the elementary science of nutrition. 
xii+404 pages, illustrated, $1.28 
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