Nicotiana tabacum, glandular hairs of, 352
Nicotine, action on Drosera, 203
Nitric ether, action on Drosera, 220
Nitschke, Dr., references to his papers on Drosera, 1 , on
sensitiveness of backs of leaves of Drosera, 231 , on direction of
inflected tentacles in Drosera, 244 , on Aldrovanda, 322
Nourishment, various means of, by plants, 452
Nuttall, Dr., on re-expansion of Dionaea, 318
O.
Odour of pepsin, emitted from leaves of Drosera, 88
Oil, olive, action of, on Drosera, 78, 126
Oliver, Prof., on Utricularia, 432, 441-446
P.
Papaw, juice of, hastening putrefaction, 411
Particles, minute size of, causing inflection in Drosera, 27, 32
Peas, decoction of, action on Drosera, 82
Pelargonium zonale, glandular hairs of, 350
Pepsin, odour of, emitted from Drosera leaves, 88 , not digested by
Drosera, 123 , its secretion by animals excited only after absorption,
129
Peptogenes, 129
394