INDEX 



419 



Kew Gardens, beauty and interest of, 



32, 303 

 specimens of Rhus toxicodendron 



at, 93. 94 



Koch (Berlin), cholera-bacillus dis- 

 covered by, 240 



tubercle-bacillus discovered by, 

 240 



Ladybird, 325 



Lamarck, inferiority of scientific 

 methods, as compared with 

 Darwin, 19-22, 26 

 Philosophical Zoology by, 20 



Lankester, Sir Ray, address -by, 

 Darwin Centenary Celebra- 

 tion at Cambridge, 33-37 



Leprosy, bacillus of, discovery by 

 Hansen, 240 



"Leptocephali," discovery of, 70-72 



Life, protoplasm the seat of, 182-184, 



328 



Herbert Spencer's definition of, 183, 

 184 



Light, rate at which it travels, 221 



Locusts, winged serpents and, pro- 

 bable connection between, 

 124-125 



Lunatics, distinctions between feeble- 

 minded and, 274-276 

 laws relating to feeble-minded and, 

 need for improvement in, 275 



Lyell, Sir Charles, Darwin and 

 Wallace papers communi- 

 cated to Linnean Society by, 

 12, 13 



Malaria, comparative death-rate from, 



in Panama Canal zone, 2-4 

 measures adopted in Cuba and 



Panama for prevention of, 



2, 3 



Mammoth age, 380, 386 

 Man, sleep of, compared with repose 



or quiescence of other living 



things, 159-161 

 Mankind, congenital defects in, 



causes of, 273 

 Mental defect, 274 

 Metchnikoff, Professor, discoveries 



with regard to use and value 



of "phagocytes," 39 

 experiment by, in connection with 



cholera-bacillus, 241 



Metchnikoff continued 

 experiments and investigations of, 



for prevention of "senile 



change," 40-43 

 influence of Darwin's discoveries 



upon study of disease by, 



39, 40 

 researches of, with regard to 



microbian flora of localities, 



249 

 Russian and French representa- 



tive at Darwin Centenary 



Celebration, 33, 38 

 Tolstoi's meeting with, 43, 



44 

 use of sour milk prepared with 



lactic ferment introduced 



by, 41, 42 



y, 



raphi 



Micrographia (Hook), 173, 289 

 Microscopes, improvements in, 173, 



176-178 

 Milton, celebration of tercentenary 01 



birth, Halley's comet in 



relation to, 228 

 Halley and, scholars of St. Paul's 



School, 228, 229 

 Mistletoe, pre-historic rites associated 



with, 362 

 Mollusca, animals classed as, and 



definition of word, 129 

 Molluscs, protection of young, 137- 



139, 144, 146 

 Mongolian wild horses, 86 

 Morley, Lord, installation of, as 



Chancellor of Manchester 



University, 6 

 Morphia, product of opium poppy, 



363 



Moths, British species allied to 

 Mexican "jumper," 300 

 301 

 clothes, mischief effected by cater 



pillar of, 341-343 

 movable case made by cater 



pillar of, 341-343 

 propagation of, 341 

 various species of, 343-345 

 Mexican "jumper," 300, 301 

 silk threads produced by cater 



pillars of certain, 293 

 Mountain-climbing, use of oxygen 



gas in, suggested, 263 

 Moustierian period, definition of, 

 384, 385, 408 



