54 



constructed and acted like an eel trap. Considerable pressure 

 could be exerted by the collar, spring door and inward-pointing 

 bristles. One day he found a small tadpole with its head in one 

 bladder and its tail drawn into another. After touching the bladder 

 the suction was inevitable and all withdrawal prevented. So far 

 as he knew there was no digestive fluid and no reactive substance 

 to aid the decay which took place. There were always concavities 

 in the outer wall of the bladders when inactive, which at once 

 responded to a stimulus on the very sensitive bristle and became 

 convex, causing the object to be drawn in. After action the bladder 

 would not again be sensitive for at least 24 hours. The seedling 

 of the plant develops only one cotyledon and the plant dies down 

 at the end of summer. The plant itself has no root, but slight 

 root-hairs exist on the green globule which is the first stage in 

 spring. Stomata also exist in plenty on the upper surfaces of a 

 young plant, but none on a fully developed one. The upper 

 surfaces appear as if waxed. The seedling has a rosette of thread- 

 like leaves, with a great resemblance to the butterwort {Pingiiicula) 

 seedling, which also has only one cotyledon developed. 



He also showed slides of t'livjuicula sp. which grew in the 

 northern portions of this Island. The leaves of this plant had a 

 number of mushroom- shaped glands which were very much visited 

 by small insects. He had in a few hours taken 101 specimens of 

 Psocids on one plant. The next day that plant was avoided, but 

 others were equally attractive. The edge of the leaves curls over 

 slowly and covers up the glands with the flies attached to them. 

 If shreds of meat are presented to these glands the response is 

 much quicker. More fluid is secreted, which is more acid, and 

 attacks the flesh of the victim, which is absorbed, and subsequently 

 the leaf uncurls and the debris, no longer held by a sticky fluid, is 

 blown away. 



He also illustrated the pollination of several species of 

 British orchids which were mainly attended by moths with long 

 mouth tubes which were inserted in the spurs of the flowers, where 

 moisture was sucked through the walls. 



Mr. G. T. Lyle exhibited slides of ova of Lepidoptera, stages 

 in the life-history of other insects, emergences of Lepidoptera, etc. 



Mr. Lucas exhibited slides of Li/ciuni harharuin the " tea-tree," 

 shepherd's-purse, Turkey-oak, woody night-shade, deadly night- 

 shade, arbutus, clematis, arum, privet, burdock, agrimony, snap- 



