TENNENT 



PLATE 3 



32-37. Toxopneusles 9 X Hipponoe J 1 . NaOH. Fourth day. 

 38-41. Hipponoe 9 X Toxopneustes tf. NaOH. Fourth day. 



42-43. Hipponoe 9 X Toxopneustes Q\ NaOH. 



44. Toxopneustes 9 X Hipponoe cJ 1 . Acetic acid. Fifth day. 



