ILLUSTRATIONS 
GRANT ZEBRA AND YOUNG 
Frontispiece 
LARGEST ALLIGATOR IN THE REPTILE HOUSE 38 
KUROPEAN RED DEER 48 
BACTRIAN CAMEL : ; 52 
MUTE SWANS ON THE BEAVER POND . 60 
PYGMY HIPPOPOTAMUS : 64 
PIGEONS IN FLIGHT OVER THEIR AVIARY 76 
COLUMBIAN BLACK-TAILED DEER 80 
ON THE WILD-FOWL POND : 90 
TREE TOAD ON THE TRUNK OF AN OAK 102 
ROOSEVELT DAY IN THE PARK 110 
A WORKSHOP IN THE JUNGLE 114 
RESEARCH STATION, KARTABO 116 
THE MAZARUNI RIVER 118 
BEGINNING A LONG JOURNEY . ; 124 
SIPHONING WHITEFISH FRY INTO THE SHIPPING CANS. 128 
SUGGESTION FOR IMPROVEMENT OF AQUARIUM BUILDING . 132 
PROPOSED AQUARIUM PUMPING PLANT 133 
GIANT GARFISH FROM LOUISIANA 133) 
FILTER BED f 137 
FIVE TYPES OF STRAINERS USED IN AQUARIUM . 137 
LEAD FILTER PIPE WITH SAW CUTS. 138 
HAND AIR COMPRESSOR 139 
STEAM AIR COMPRESSOR 140 
