548 



INDEX TO ILLUSTRATIONS. 



N. 



Nervous system . . . , 



Night Adders hatching 



adder . . . , 



adder — dissection of poison 

 adders and eggs . ^ . 



adder — -seizing toad . 

 venom glands. 



Noosing a snake 



rlands 



PAGE 



. 283 



19 



216, 232 



• 237 



• 235 

 240 

 420 

 269 



Olive-brown water snake ..... 

 Osmosis — to explain how venom passes into the blood 

 Oviparoiis adder ...... 



91 

 307 

 244 



Pet snakes and boy ..... 



Phagosytes ...... 



Poison apparatus of snake .... 



,, of Puff Adder, Cape Cobra, and Boomslan 

 Psammophis genus of snakes — (cross-marked snakes) 

 Puff adder — fangs of . 

 head of . 

 dissection of 

 eggs and young of 

 and batch of young 

 swallowing a rat 

 how it bites 

 how it strikes . 

 the sexes 

 swallowing prey 



dissection of poison glands and fangs 

 collecting venom of 

 Puff adders and Mole snakes 

 ,, adder and her young . 



„ after swallowing a rat 

 Python — head of 



and its skeleton 



in its native habitat 



and a boy 



constricting a buck . 



on a krantz 



about to swallow a KUp Dassie 



swallowing a bird 



— feeding one in captivity 



— claws and rudimentary legs 



Regius .... 



after swallowing a pig 



. 462 



• 301 

 25 



. 361 



122 



213, 349 



• 346 

 219 

 222 



224, 473 

 36, 226, 479 



357 

 228 

 230 

 232 

 237. 361 

 375 

 467 



471 

 477 

 58 

 59 

 61 

 64 

 66 

 67 

 70 



73 



76 



78 



281 



329 



Relative lengths of Epochs 

 Respiration methods . 



9 

 432, 433 



