CHIEF ADDITIONS TO THE SECOND EDITION. 
Mori on the seat of irritability in Aldrovanda. 
Duval-Jouve on the function of certain glands in Aldrovanda. 
Fraustadt, Penzig, and Pfeffer on the roots of Dionza and Droso- 
phyllum. 
Batalin on the yellow-green colour of Pinguicula. 
Batalin on the pits or depressions in the leaves of Pinguicula. 
| Pfeffer on the use of Pinguicula as rennet. 
Kamienski on the absence of the root in Utricularia. 
Schimper on the evidence of absorption of the products of decay in 
Utricularia cornuta. 
Hovelacque, Schenk, and Schimper on the morphology of Utricularia 
montana. 
Schimper on Utricularia cornuta. 
Schimper on the evidence of absorption in Sarracenia. 
De Bary on the vigorous growth of Utricularia when supplied with 
animal food. 
Treub on Dischidia Raffesiana. 
EE OO ne T Re 
