x CONTENTS. 
CHAPTER XVI. 
PINGUIOULA. 
Pinguicula vulgaris — Structure of leaves— Number of insects 
and other objects caught—Movement of the margins of the 
leaves — Uses of this movement — Secretion, digestion, and 
absorption — Action of the secretion on various animal and 
vegetable substances — The effects of substances not .con- 
taining soluble nitrogenous matter on the glands—Pingwiculu 
grandiflora — Pinguicula lusitanica, catches insects — Move- 
ment of the leaves, secretion and digestion .. Pages 368-394 
CHAPTER XVII. 
UTRIOULARIA. 
Utricularia neglecta — Structure of the bladder—The uses of the 
several parts — Number of imprisoned animals — Manner of 
capture — The bladders cannot digest animal matter, but 
absorb the products of its decay— Experiments on the 
absorption of certain fluids by the quadrifid processes — 
Absorption by the glands — Summary of the observation on 
absorption — Development of the bladders — Utricularia 
vulgaris— Utricularia minor—Utricularia clandestina 395-430 
CHAPTER XVIII. 
UTRICULARIA (continued). 
Utricularia montana — Description of the bladders on the sub- 
terranean rhizomes — Prey captured by the bladders of 
plants under culture and in a state of nature — Absorption 
by the quadrifid processes and glands — Tubers serving as 
reservoirs for water — Various other species of Utricularia — 
Polypompholyx — Genlisea, different nature of the trap for 
capturing prey — Diversified methods by which plants are 
nourished .. 0. ee ewe 481-453 
{NDEX ows ese wee saws «SHAG 
