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The Diatomaceae of Philadelphia and Vicinity 



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

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

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

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

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

 vellum cloth, $5.00. 



The Book Department :: Aquatic Life 



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JULIUS RIEWE 



BREEDER AND FANCIER OF TROPICAL FISHES 



3519 Costello Avenue, Chicago, 111. 



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. 



THE FISH POND 



Lionhead Spawn. Also Young from the 

 finest stock in the country 



SHAW, 1941 North 5th Street 

 Philadelphia 



"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 



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A new food intended for baby goldfish and Tropi- 

 cal Fish. Sprinkle lightly on surface with pep- 

 per shaker. It will float indefinitely and gradu- 

 ally sink, giving your fish food in all parts of 

 the aquarium. The uneonsumed food developing 

 into infusoria. 



Yogi, 15c. box; by mail, 17c. 



Yogi, by lb., 75c; add postage. 



Magic, 50c, postpaid. 



S. 0. S., 35c box; by mail, 38c 



Robert J. Schaeffer 



1818 Frankford Avenue 

 Philadelphia 



For Sale 



An aquarium manufacturing works, with fully 

 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. 



Tropical Fishes Food and Snails 



Plants 



MEXICAN SWORDTAILS (Xiphophorus helleri), G males and 6 females, the dozen, $7.00; 

 Ruby Moonfish (Platypoecilus rubra), 4 males and 8 females, the dozen, $7.00; Gambusla 

 holbrooki. per dozen, in pairs, $4.00; Paradise fish and Notropis metallicus, per dozen, $4.00; 

 Danio rerio, per dozen, $8.00. (Shipping cans, 50c.) 



PLANTS PER DOZEN: Vallisneria (wide leaf), 60c; Vallisneria (narrow leaf, 30c; Frog 

 Bit, 50c; Hyacinths, 60c; Water Poppy. $1.00; Anacharis and Cabomba, 75c. per dozen 

 bunches. Twelve kinds of aquarium plants, a tine assortment, $1.00. 



AFTER JUNE 1ST: Red, white and yellow water lilies, blooming plants, 75c. each; blue 

 water lilies. $1.25 each. (All plants sent postpaid.) 



GROUND SHRIMP, the best dry fish food $1.10 per pound. Large Japanese snails, $2.00 

 per dozen; smaller. $1.00 per dozen, 



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



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