stone, bricks, aamp;c. swell there, and maintain the claw so firmly attached, as to support the branch, and enable the plant to climb on ... 81. (fig. 81.), which are hollow foliaceous organs, with lids that are hydrometers, opening and shutting according to the ... Thus when the air is dry, the ring round the lip of the pitcher of Nepenthes contracts, and allows the lid to shut down, ... We ascertained, some time since, that the fluid found in the pitcher of Nepenthes is a secretion of the plant, beinganbsp;...