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jj The RYUKIN 



g or JAPANESE FRINGETAIL § 



E HAVE an especially fine lot § 



of large and very large fish of 



this variety suitable for use as R 



Breeders, or for display in o 



pools or large aquaria. Write n 



us for prices. Retail or in quantity 8 



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SUNDOWN FISH HATCHERY 



Coachella, California 



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Goldfishes 



Blacks :: Blues :: and Vari-hues 

 g NJone for sale at present! 







§ GEORGE A. SCHEMK 



Mount Vernon, N. Y. 



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FRESH WATER BIOLOGY 



By HENRY B. WARD and GEORGE C. WHIPPLE 



WITH THE COLLABORATION OF 25 DISTINGUISHED SPECIALISTS 



All interested in aquatic biology will find here answers to their 

 queries on methods of study, conditions of existence, types of life, and 

 inter-relations of the organisms that inhabit our fresh-water bodies, 

 together with data on their life histories, habits and range. 



This work is the first complete and accurate record of North Amer- 

 ican aquatic life, especially the micro-organisms ; among both plants 

 and animals excluding the vertebrates, higher plants and bacteria, 

 every form is described that has been reported frorr a fresh-water body 

 on this continent. 



A comprehensive general discussion of each group precedes the 

 description of individual forms, which are arranged under a key to 

 permit of rapid and accurate determination of the genera and species. 

 Nearly every form is illustrated, and its diagnostic features are pointed 

 out. Biological data on its habits, frequence and distribution are also 

 given. 



Fresh-Water Biology is a big book of 1111 pages, with 1547 illus- 

 trations. Price, $6.00, plus postage on four pounds. 



AQUATIC LIFE, 542 E. Girard Avenue, Philadelphia, Pa. 



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308 



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AQUATIC MICROSCOPY q 



By DR. ALFRED C. STOKES (] 



I) A splendid, not too technical hand- (J 



ij hook of the lower organisms for the |j 



II inquiring aquarist who dislikes to be [j 



U nonplused by scientific verbiage. 324 [) 



II pages, with 198 illustrations. 1) 



|| $2.25, plus postage on 2 pounds. j] 

 Address Aquatic Life 



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JAPANESE GOLDFISH 



By DR. HUGH M. SMITH 



A guide to the methods of breeding 

 fancy goldfish practiced in Japan. The 

 result of the personal investigations 

 of the author. Ten breeds are illus- 

 trated in color, with numerous text 

 cuts; 112 pages. 



$2.00, plus postage on 2 pounds. 

 Address Aquatic Life 



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