Amoeba, term applied to proteus | Animals-continued
parthenogenetic powers possessed by certain, 330, 331
poisonous, methods of self-protec- tion used by, IOI
'warning coloration sessed by, 107
propagation of, 132-137, 144-145, 329-330
sleep of, salient features connected with, 161-164
structure of multicellular and uni- cellular, comparisons be- tween, 207-208
unicellular, uses made of cilia by, 194-197, 207
wild, congenital defects less ob- vious in, 271, 272 wood-boring, 346, 347
Anopheles Gnat, 3 Ants, aphides
enemies of, 319, 325 hop-blight caused by species of, 317, 319
parthenogenetic propagation of, 326-327, 330, 334, 336 rapid propagation of, 326, 338 relationship of Coccida to, 322, 323
secretive productions of, 323-325 various species of, 322 Archæology, discoveries in connection with pre-historic man, 371- 372, 391, 394-395, 398, 400, 402
Art, knowledge compatible with, 45 Astronomers, stupendous nature of work, 224
Astronomy, Halley's discoveries in Boys, C. V., fine quartz threads
Bacteria, destructive invasion made by, 340
microscopic observation of, im- provement in, 239
Balfour, Rt. Hon. Arthur, speech at Manchester by, 6, 7 (quota- tion) Bananas, cultivated varieties of, 369 plantains and, identity of, 368 Bayeux tapestry, 231
Becquerel, M., experiments of, 183 Beetles, book-worm, depredations of, 350-351
death-watch, tapping made by, 351, 352
wood-boring, 351, 352 wood-boring, 349-350
ladybird, beneficial activity of, 319, 325, 326 origin of name, 325 perforation of soft metal by grubs of, 353 Bell-animalcules, 197 Birth-rate, increased, amongst poorer classes, 285, 286 Blood, lack of red colour in, cause of, 148, 149
red-coloured, cause and special duty of, 148
Bonaparte, Prince Roland, French representative at Darwin Centenary Celebration, 39
Book-worm beetle, 350 Boulenger, Charles, Egyptian fresh- water jelly-fish described by, 64
Caddis-worms, movable cases made by grubs of, 343
Calandruccio, discovery of young of the eel by, 71-72
Cambridge-Darwin Centenary Cele- bration, Address by Sir Ray Lankester at, 33-37
held at, 18, 33, 38
notable representatives at, 33, 38, 39.
Cave-men, ancient, artistic skill of, 80, 81
horse mastered and muzzled by, 80, 81
Caves, care taken in excavation of, 388
discoveries of human remains in deposits of, 371, 374, 383,
393, 395, 402, 407-409 discovery of bones of ancient men in, rarity of, 372-374 French and English, evidences of human occupation found in, 78-79
Cells, definition and origin of term, 170-173, 328
egg-cell, process of fertilisation, 202-204, 330, 332 important part played by nucleus in life of, 198-200, 328, 329.
individual character and CO- ordinated activity of, 170, 180-182, 184, 328
process of division, 200-202, 328 Cell-theory," explanation of Pro- fessor Schwann's, 174-176 Chapelle-aux - Saints, discovery at, important, 371, 374, 390,
due to panic caused by, 239 date of first appearance England, 238
diffusion through water-supply, 239
discovery by Koch of bacillus producing, 240 epidemic nature of, 238 Europeans first attacked by, 238 recognition of, by Hindu writers, 238
precautions to be observed for prevention of, 244, 245, 246 Cholera-bacillus. See Cholera Christmas fare, origin of, 356-358 Cilia, animals provided with, and action of, 194, 195, 207
definition of term, 194
uses made of, by unicellular animals, 195-197, 207 Cirrhipedes," Darwin's discovery with regard to, 23, 24 Civilisation, scientific knowledge as affecting, 16
Clothes moths, 341
Coccida, relationship of aphides to, 323
Colour, in bird's feathers, 55, 56 nature and properties of light as affecting, 52-55
Comets, ancient records of, exaggera- tion in, 227, 229
composition of, 234, 235 Donati's, imposing size of, 227 early superstitions with regard to, 227, 228
elliptical orbits of, 233 Halley's-Chinese astronomical ob- servations relating to an- tiquity of, 230 length and breadth of orbit, 233 length of tail, 227
Comets—continued.
Halley's-continued.
predicted recurrences by dis- coverer of, 226, 230
recent appearance of, 226, 230, 236
significance of date of return, 228, 229
superstition and consternation caused by, 230, 231
William the Conqueror's "star," identical with, 231
important, various, 227
Milton's reference in Paradise Lost to, 228, 229
periodic and wandering, distinction between, 233, 234
photographs obtained at Royal Observatory, Greenwich, of new, 225, 226
shooting stars and, connection between, 235, 236
signification of name, 227
superstitions with regard to, 229 Corrèze skull, 371
Cromagnards, designation of Reindeer men as, reason for, 390
Cuba, measures adopted for prevention of yellow fever and malaria in, 2, 3
Darwin Centenary Celebration at Cambridge, 18, 33, 38
Darwin, Charles-
comparison between theories of Lamarck and, 19, 20
connection with University of Cambridge, 36
establishment of "natural selec- tion" theory, 34
extent of time spent in experi- ments and observations, 18- 19, 22-23
friendly relations between Wallace and, 13, 37
geological discoveries of, 24 Henslow's influence upon, 36 "Natural selection 22 theory ex- plained, 27-29
study of disease influenced by discoveries and research of, 39, 40 Darwinism (Wallace), 15, 16 (quota- tion)
Death-rate, diminished, reasons ac-
countable for, 284, 285
health of locality determined by, 283
records of, methods of keeping, 283, 284
Death-watch beetle, 351, 352 De Lastic, Vicomte, carvings from caves in collection of, 79 Dewar, Sir James, experiments of, 183 Divers, Mediterranean, suggested in- halation of pure oxygen gas by, 261 Diving, Fleuss apparatus, diluted oxygen supply to, 263-265 Donati's comet, 227 Dragon, heraldic, description of, 114, 115
Dragons, classification of, by heralds,
conventional, probable sources of, 126
probable origin, 121-123
snakes and, connection between, 120-123 tradition of, reasons for discrediting suggested, 118-120
Drugs, individual variability (idiosyn- crasy) with regard to, 102
Eau-de-Cologne, volatile oils from
aromatic plants of Riviera used in manufacturing, 47 'Eel-fare,' term for annual "run- ning up" of young eels, 67, 70, 73, 75
Eel-fisheries, regulation and en- couragement by Danish Government of inland, 65 German Government of inland, 65, 66 Eels, age of, knowledge resulting from power of telling, 69 shown by scales, 69
common, period when change from "yellow" to "silver" takes place in, 67, 69, 70 reproduction, migrations habits of, 66-67, 69-76 "leptocephalus - young - phase" tadpole of, 71-73, 75 migrations of, geological changes as affecting, 74
Petersen's researches with regard to "silver," 68, 69 popularity of, abroad, 65, 66 rare Occurrence of, in river Danube, 74, 75
"Elvers," term for young eels, 66, 67, 70, 71, 73, 75, 76 Europe, iron, stone, and bronze ages of, 375-377
Evelyn, diary of, 229 (quotations)
Feeble-minded, distinctions between lunatics and, 274-276
laws relating to lunatics and, need for improvement in, 275 necessity for state guardianship of, 276-278
Feeble-minded children, 278 Feeble-mindedness,
atavism gested cause of, 274 hereditary transmission of, 277 occurrence of cases in all classes of community, 276
views of Government Commission on origin of, 281 Festivals, Christmas, origin of chil- dren's customs associated with, 361-362
English Christmas, introduction of turkey in connection with, 358
origin of heavy feeding at, 357 prehistoric and barbaric customs in connection with, 356-357 Fever, yellow, comparative death- rate from, in Panama Canal zone, 2-4
measures adopted in Cuba and Panama for prevention of, 2, 3 Fish, shell-fish and, individual sus- ceptibility to poison from, 102, 103
Fishes, age of, method of telling, 69 poisonous, 103
poison-spines of, 107, III
Fixed stars, 221
Flack, Mr. Martin, experiments of, with regard to oxygen gas, 260
Fleuss apparatus, 263-265 Flowers, perfumes discharged into the air by, various effects of, 105. 106
« ՆախորդըՇարունակել » |