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Show BY THE SAME AUTHOR. ON 'fHE ORIGIN OF SPECIES BY MEANS OF NA'fUHAL Sfi~LIWTION; or, THE .PnKSERVATION Ol!' FAVOUUED RACES IN THI£ tiTHUGG LE JiOU LmE. Sixth Edition. S·imteenth 1'/wusand. MURHAY. THE DESCENT OF MAN, AND SELECTION IN RELATION TO SEX. Second Edition, revised and augmented. Tenth Thousand. MuRRAY. ON THE VARIOUS CONTRIVANCES BY WHICH BRITISH AND FOREIGN ORCHIDS ARE FERTlLISI!:O BY lNSE<JTS; and on the Goon EFFECTS OF CnossrNG. With numerous Woodcuts. MmmAY. A NATURALIST'S VOYAGE ROUND THE WORLD; or, A JOUH.!\AL OF RESEARCHES INTO THE NA'fURAL HISTORY AND GEOLOGY 0.1!' TilE CouNTIUES visited during the voyage of H.M.S. 'Beagle,' under the command of Captain FrTzRoY, R.N. Twelfth Thousand. MuHRAY. 'fHE EXPRESSION OF THE EMOTIONS IN MAN AND ANIMALS. With Photographic and other Jllustrations. Ninth Thousand. MUitnAY. ON THE STRUCTURE AND DISTRIBUTION OF CORAL REEFS. Second Edition. SMITH, ELDEn, & Cv. GEOLOGICAL OBSERVATIONS ON VOLCANIC ISLANDS. SMITH, .ELDJm, & Co. GEOLOGICAL OBSERVATIONS ON SOUTH AMERICA. Sli111'H, ELDER, & Co. A MONOGRAPH OF THE CIRRIPEDIA. With numerous Illus-trations. 2 vols. 8vo. HanDWICKE. PREPARING FOR EARLY PUBLICATION. 'fHE MOVEMENTS AND HABITR OF CLIMBING PLANTS. Second Edition, revised. With lllm,trations. Mum~AY. ALSO, 'fHE VARIATION OF ANIMALS AND PLAN'l'S UNDER DOMESTICATION. Second Edition, revised. With lllustrations. MuRRAY. F A,~~.r~ AND A~GUME~TS F<?R DARWIN. By FRITZ MuLLm:. I ran slated by W. S. DALLAs, 1! .L.S. W1th lllustrations. Post !:!vo. 6s. MunnAY. 0 0 N T E N '1' S. CHAPTER I. DROSERA ROTUNDIFOLIA, OR THE COMMON SuN-DEW. Number of insects captured- Description of the leaves and their appendages or tentacles- Preliminary sketch of the action of the various parts, and of the manner in which insects are captul'ed -Duration of the inflection of the tentacles- Nature of the secretion- Manner in which insects are carried to the centre of the leaf- Evidence that the glands have the power of absorption- Small size of the roots Pages 1-18 OHAPTEH II. THE MovEMENTS oF THE TENTAOLES FROM THE CoNTACT oF SoLID BoDIES. Inflection of the exterior tentacles owing to the glands of the disc being excited by repeated touches, or by objects left in contact with them- Difference in the action of bodies yielding and not yielding soluble nitrogenous matter- Inflection of the exterior tentacles directly . caused by objects left in contact with their glands- Periods of commencing inflection and of subsequent re-expansion- Extreme minuteness of the particles causing inflection- Action under waterInflection of the exterior tentacles when their glands are excited by repeated touches- Falling drops of water do not cause inflection .. 19-37 UNIY._ERSliY OE UTAH UB_RAJ{IE~ |
