SCIENCE— ADVERTISEMENTS 



NEW BOOKS 



KEW 

 Cretaceous and Cenozoic Echinoidea 

 of the Pacific Coast 



133 Pages, 40 Plates, Paper $2.50 



SWARTH 

 Revision of the Avian Genus 

 Passerella 



149 Pages Paper $1.75 



ALLEN 

 Plankton of the San Joaquin 

 River 



292 Pages Paper $3.00 



Carriage Extra 



The University of California Press 



Berkeley, California 



19 Eait 47th Street, New York 



One of the Most Widely Used 

 College Chemistries 



GENERAL CHEMISTRY 



by Mac'^herson and Henderson 



A comprehensive survey of general 

 chemistry, limiting the material, 

 however, to that which experience has 

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 Free use is ''made of modern chemical 

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GINN AND COMPANY 



70 Fifth Avenue 



New York 



Downing's Famous Book Revised 



LANDSCAPE GARDENING 



By ANDREW JACKSON DOWNING 



Tentti Edition, Revised 



By FRANK A. WAUGH, M.Sc. 



Professor of Landscape Gardening, Head of Department 

 Head oj Division of Horticulture, Massachusetts Agricultural College 



Including Many Chapters from Downing's "Rural Essays" 



IN presenting this new edition of Downing's "Landscape Gardening" Professor Wangh has 

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Those who have country places of their own, whether large or small, will appreciate the 

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Downing & Waugh's "Landscape Gardening" has 439 pages, 6 by 9 inches, and is well 

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