Post-Tertiaries (or Quaternary), gravel and cave-deposits termed, 83 Proteids, building up of, in plants, 204, 205 cell-protoplasm consisting of, 189, 190 chemical composition of, 188, 189 “Proteus,” definition of term as applied to unicellular animals, 193, 194 Protoplasm, chemical elements contained in, 187 death caused by destruction of, 183-185 active life of, 182-184, 328 explanation of term, 170-172, 328 Quaternary (Post-Tertiaries), 384 _bis_ Reindeer age, 384 _bis_ Reindeer men (or Cromagnards), artistic work of, 383, 390, 391, 393 brain cavity of, comparable with modern European, 388, 390 customs of, 391, 393 skulls and skeletons of, found in cave-deposits, 391, 393 _Rhus toxicodendron_, American poison-vine or, poisonous nature of, 92 case of poisoning by, recorded in _The Spectator_, 96 differences and resemblances between Virginian creeper, Veitchii, and, 93 individual susceptibility to poison of, 94, 96, 102 painful malady produced in certain persons by poison of, 91, 92 recognition in United States and Japan of danger of, 92, 98 results of examination in laboratory at University of Harvard (Mass.), with regard to, 94 similarity between poisonous properties of Chinese primrose and, 104 specimens at Kew Gardens, 93, 94 use in Japan, 92 Riviera, cultivated trees and plants of, 47-49 flowers for sale, cultivated in, 56, 57 green tree-frog of, 49, 50, 52, 55 meteorological conditions of, 46 primitive vegetation of, 46, 47 tree-frog, blue variety of, 50, 52, 53, 55, 56 vegetation of, influence of man upon, 57 Salamanders, European species, various, 218 Mexican, various species of, 215, 216 Sanitation, active development in Great Britain, cholera panic as affecting, 239 Schliemann, discovery of Troy and Mycenæ by, 16 Schönbein, experiments of, with regard to ozone, 251, 252 Schwann, Professor, “cell theory” of, explained, 174-176 Science, discoveries in, satisfaction experienced by those making, 1 sensibility to art compatible with capacity for, 44 state officials’ opposition to, 286 value and importance of, 7, 8 Scorpions, poison of, experiments with regard to, 108-110 Sea-anemones, poison-bearing threads of jelly-fishes and, 110 Serpents, winged, probable connection between locusts and, 124-125 worship and propitiation of, 122-123 Shell-fish, poison-glands of, 111 boring in stone, 347, 348 Siebe, Gorman and Co., perfected diving dress constructed by, 265 “Silver-fish” book-worm. See Insects Skulls, ancient and modern, comparison between, 410 comparison between, of various periods, 393-401 Corrèze, comparison between Neanderthal and, 403-406 discovery of, 371, 374, 390, 402 restoration of, 410-411 European, compared with Neanderthal and Corrèze, 406