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The Diatomaceae of Philadelphia and Vicinity jj 



By CHARLES S. BOYER, A. M., F. R. M. S. § 



The most recent book of the diatoms, and one that is serviceable over a far greater [) 



area than is indicated by the title. A fascinating subject properly treated. More 8 



than 700 illustrations, enlarged 800 diameters, from original drawings by the author, R 



adequately supplement the text. Methods of collecting, preparing, mounting and 8 



examining diatomaceous material are given. The work contains 143 pages, 9 by 12 jj 



inches, not including the full-page plates, with complete index. Price, bound in art n 



vellum cloth, $5.00. 8 



The Book Department :: Aquatic Life U 



§ 



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JULIUS RIEWE 



BREEDER AND FANCIER OF TROPICAL FISHES 



3519 Costello Avenue, Chicago, III. 



Fine stock of Danio malabaricus, D. alboline- 

 atus, D. rerio, Barbus conchonius, B. semifas- 

 ciolatus, B. ticto and many other kinds of 

 tropical fishes. None shipped. Telephone Bel- 

 mont 5092. 



THREE MILLION GOLDFISH 



Buy from the breeder with 107 acres of ponds. 

 "Bug Food" for all fishes. Output in 1919 over 

 300,000 boxes. Per box, by mail, 17 cents ; pint, 

 by mail, $2.00; quart, $3.75. Climbing Perch 

 from India, 2 for $4.00; 4 for $7.50; 6 for $10.00. 

 Putnam Fisheries, Office, 462 "Washington 

 street. Buffalo, N. Y. 



"AQUARIA FISH" 



A practical work on care and breeding of 

 fish in the aquarium, greenhouse and out- 

 door ponds. Finely illustrated. 

 Everyone interested in keeping fish should 

 send for a copy of this book. Price, $1.00. 



F. L. TAPPAN, Route 2, Hopkins, Minn 



^food for Bnby Gold F.»h od^ 



s. o. s. 



FISH FOOD 



MANUFACTURED BY 

 ^ROBERT J. SCHAEFFER, 



PHIU. PA. 



Robert J. Schaeffer 



S, O. S. a new food for Gold- 

 fish and Tropicals. The un- 

 consumed food developing into 

 infusoria. 



S, O. S. 35c box; by mail 38c 

 Magic (Infusoria) 50c postpaid 

 Yogi Fishfood 15c; by mail 17c 

 Yogi by lb 75c; ad postage 

 Yogi 10 lb lots 65c; ad postage 



Circular on above products 



7421 Montour Street 

 Burholme, Philadelphia 



For Sale 



An aquarium manufacturing works, with fu'ly 

 equipped goldfish and supply outfit. Has been 

 operated successfully for eighteen years. No 

 better or finer aquariums made. Must be sold 

 at once to permit the owner to give entire 

 attention to other important business. Write 

 for full particulars. 



Pioneer Aquarium Works. Racine, Wisconsin 



Sale or Exchange 



Surplus Stock of Rare and Fancy Fish 

 Plants of All Kinds 



G. Germann, 0. D. 3823 N. Richmond St. Chicago 



Phone: Monticello 6864. 



CRESCENT EISFI FARM 



TROPICALS! - FOODS! - PLANTS! 



lienisia latipinna, per dozen, $4.00 Shipping cans 50 cents each 



Vallisneria spiralis, wide leaf, 60c dozen; Narrow leaf 30c dozen 



Lotus tubers, 50c each 



Japanese Snails, $1.00 and $2.00 dozen 



Shrimp - pure shelled shrimp only - the best fishfood $1.10 pound 



CRESCENT FISH FARM, 1624 Mandeville Street, New Orleans, La. 



3oooe=xi8 



