XVI 



ILLUSTRATIONS. 



20. SMOOTH NEWTS ..... 



21. TAIL OF MALE ADDER (3 INCHES) 



22. TAIL OF FEMALE ADDER (2J INCHES) 



23. HEAD PLATES OF ADDER .... 



24. ADDER (26J INCHES) .... 



25. GULLET OF ADDER, DISTENDED TO SHOW CAPACITY 



26. INTERNAL ORGANS OF ADDER 



27. HEART AND LIVER OF ADDER 



28. DISSECTION OF THE HEART, LUNG, AND LIVER . 



29. YOUNG MALE ADDER AFTER SLOUGHING IN SPRING (19| 



INCHES) ..... 



30. OLD FEMALE ADDER (26J INCHES) 



31. ADDER IN MOTION .... 



32. FEMALE ADDER IN YOUNG (OVIDUCTS FULL OF EMBRYOS 



33. DISSECTION OF OVIDUCTS OF ADDER 



34. EGGS OF ADDER ..... 



35. EGGS OF ADDER (LATER STAGE) . 



36. EMBRYO IN EGG ..... 



37. EMBRYO ADDERS .... 



38. FEMALE ADDER (25£ INCHES) 



39. EMBRYO ADDERS (MALE) .... 



40. TEN EMBRYO ADDERS AT FULL TIME 



41. FOUR MONNOW VALLEY ADDERS . 



42. SMALL RED VIPER ..... 



43. "BRUuSHER MILLS," THE FAMOUS SNAKE-CATCHER 



44. RING SNAKE IN A STONE .... 



45. FEMALE (26£ INCHES) AND MALE (24£ INCHES) ADDERS 



MONMOUTHSHIRE .... 



46. RING SNAKE ..... 



47. MALE ADDER (24 INCHES), EWYAS HAROLD, HEREFORD 



SrIIxtK* • • • • • 



48. FEMALE ADDER (26} INCHES), HEREFORDSHIRE . 



49. MALE AND FEMALE ADDERS, CENARTH, SOUTH WALES 



93 



94 



94 



97 



99 



101 



103 



105 



107 



121 

 123 

 138 

 147 

 151 

 153 

 154 

 155 

 156 

 157 

 159 

 161 

 199 

 211 

 223 

 229 



245 

 261 



294 

 295 

 310 



