ILLUSTRATIONS. 



Page 



Balanced Aquaria in the New York Aquarium Frontispiece 



Yellow Perch 13 



Balanced Aquaria 14 



A Balanced Salt Water Aquarium 17 



Portable Metal Frame Aquarium 19 



Mosquito Larvae: all Glass Aquarium 20 



Gourami 22 



Long-Eared Sunfish in a Balanced Aquarium 23 



Specimens of Axolotl, New York Aquarium 24 



Common Brook Sucker 27 



Young Catfish 29 



Common Newt 30 



Development of The Frog 32 



Common Salt Water Shrimp 33 



The Siren 35 



Soft-Shelled Turtle 36 



Soft-Shelled Turtle (upper side) 37 



Young Geographic Turtles 39 



White Sea Anemone 40 



Implements of use to the Aquarist 42 



Sea-Lettuce 44 



Balanced Salt Water Aquarium 45 



Young Tautog, or Blackfish 47 



Star Fish — Expanded 48 



Terrarium in Aquarium Jar 50 



Mudfish or Bowfin 51 



Common Roach in Balanced Aquarium 53 



Young Mirror Carp 55 



Sticklebacks 57 



Tiihularia and Astrcmgia 59 



