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North Facade of Lion House Frontispiece 



Young Nubian Lion : Dongola 33 



Lydig Memorial Gateway 35 



White-tailed Gnu 36 



White-bearded Gnu 36 



New Antelope House 38 



Barbary Lioness and Cubs 48 



Baker's Roan Antelope 54 



Fallow Deer 56 



Vicunia 60 



Alpaca 60 



Ground Plan : Antelope House and Yards 64 



A Section of the New Bear Dens 66 



The Llama House 66 



Beatrix Antelope 68 



Blessbok 68 



White Raccoon Dog {Nyciereutes albus) 71 



White Raccoon Dog 72 



New Rock-work at the New York Aquarium 74 



Angel Fish 77 



View of the Aquarium and New York Bay 84 



Manatee 86 



Great Horned Owl 88 



Crawshay's Zebra 99 



Chimpanzee: Polly . 115 



Micro-photograph of the Colon of an Orang 129 



Ascaris Mystax (Railliet) 131 



Dochmius Trigonocephaly, Female 132 



Dochmius Trigonocephaly, Male 133 



Filaria Gracilis (Rudolphi) 135 



Filaria Gracilis 137 



Filaria Immitis (Leidy) 139 



Strongylus Filaria 140 



Ceylonese Monitor 146 



African Chameleon 148 



The Tegu 150 



Rhinoceros Iguana 152 



Gila Monster 152 



Australian Monitor 154 



Horned "Toad" 156 



Glass Snake 158 



Development of the Swift 159 



Development of the Six-lined Lizard 159 



Egg of the Gila Monster 159 



Nests of the Various Sea-Birds 161 



The Bug-Eye . 161 



Laughing Gull on Nest ' 168 



Black Skimmer on Nest 168 



Black Skimmer's Nest and Crab 172 



Black Skimmer's Nest 172 



Half-grown Common Tern 174 



Gui.L-Bii.i.KD Terns in Nest 1 75 



Skimmer Fourteen Days Old 178 



Least Tern Twenty-one Days Old . 178 



Sea-Birds' Eggs in the Incubator 179 



Young Ti tun just Hatched 179 



