APPENDIX. Ill 



J. The animals dealt with in this work are best killed as follows : 



The Frog. Place the animal beneath an inverted tumbler, together with a piece of cotton-wool an inch 

 square, saturated with chloroform, and cover the whole with a cloth. 



The Crayfish. Easily killed under chloroform as above. 



Crayfish may be kept alive and active for some days in a moist atmosphere, and fed upon sopped bread. 

 They thrive much better in captivity under this treatment, than any other known to me. 



The Earthworm. Earthworms may be killed, with the body naturally extended, by immersing them for 

 two minutes in methylated spirit, and then in running water for half-an-hour. 



The Snail. Snails can be killed with their tentacles often fully extended, by placing them in water as 

 hot as the hand will comfortably bear it. 



The Mussel. Place the animal in cold water, and heat slowly to 40 C. The foot will generally be well 

 protruded at death, under this treatment. 



