CONTENTS. 



PART I. 



CHAP. PAGB 



I. THE CLASS REPTILIA ..... 3 



II. TROPIDONOTUS NATRIX, OR THE RING SNAKE . 11 



III. THE RING SNAKE — continued. THE PLAGUE OF 



SNAKES AT LLANELLY . . . .29 



IV. SNAKES IN IRELAND IN 1900 . . .38 

 V. CORONELLA AUSTRIACA, OR THE SMOOTH SNAKE . 43 



VI. HIBERNATION AND SLOUGHING . . .60 



VII. VIPERA BERUS, OR ADDER . . . .75 



VIII. THE ADDER — continued. ANATOMY . . .96 



IX. THE ADDER — Continued, colour variation in 



BRITISH ADDERS .... 109 



X. THE ADDER — continued. THE EFFECT OF ADDER 



VENOM ...... 126 



XI. THE ADDER — Continued, the reproduction of 



THE ADDER ..... 143 



XIL THE ADDER— continued. SWALLOWING THE YOUNG 



FOR PROTECTION . . . .164 



XIII. THE ADDER — Continued, statements by corre- 

 - spondents on the swallowing of the 



YOUNG by the mother . . .176 



