INDEX 



485 



Mica, in foliated rocks, ii. 204. 205 

 Mica-slate, clay-slate and, ii. 205 

 Mice, ears of, i. 358, 359 ; experiments 



by Tait on, i. 358 

 Microscope, Darwin on convenient 



form of, i. 60, 61 ; indispensable in 



work on flowers, ii. 298, 299 ; use of 



compound without simple, injurious 



to progress of Natural History, ii. 



299 

 Migration of animals and plants, i. 201. 



465 ; Darwin on plant-, i. 407 ; of 



elephants, i. 207 ; Glacial period and. 



i. 177, 201, 454, 462, 464 ; of plants, 



in tropics, i. 439 ; ii. 23 ; of birds 



ii. 70 

 Mikania, a leaf-climber, ii. 348 ; M. 



scandens, gradation between Mutisia 



and, ii. 348 

 Mill, J. S., on Darwin's reasoning, i. 



189 ; on greatest happiness principle, 



i. 327, 328 

 Miller, Hugh, First Impressions of 



England and its People, ii. 188 

 Miller, S. H., Fenland Past and 



Present by Skertchley and, ii. 241 

 Miller, Prof. W. H. , biographical note, 



i. 121 ; letters to, i. 121-4 

 Million years, Darwin on meaning of a, 



ii. 211 

 Milne-Edwards, Darwin's cirripede 



work and, i. 74, 75, 98 ; Darwin's 



opinion of, i. 136; on retrograde 



development, i. 76 

 Milne-Home, D., biographical note, ii. 



113 ; believes in connection between 



state of weather and earthquakes, ii. 



114; on Glen Roy, ii. 172, 178, 180, 



182-6; letters to, ii. 113-15, 180, 



181 ; letter from R. Chambers to, ii. 



177 ; on oscillation of sea, ii. 186 

 Milton, quotation from. i. 12 

 Mimicry, i. 183, 196, 197 ; Bates on, 



i. 258 ; and dimorphism, i. 265 ; 



Volucella as an example of, i. 196 ; 



Wallace on, i. 265, 266 ; and colour, 



ii. 78, 87 ; F. Mullet on Lepidoptera 



and, ii. 91 

 Mimosa, i. 445 ; Darwin's experiments 



on, ii. 289, 361, 368 ; M. albida, 



Darwin on, ii. 398, 429, 430 M. 



sensitiva, ii. 411 

 Mimosese, F. MiUler's account of seeds 



of, ii 349 

 MimuluS) Pfeffer on movement of 



stigma, ii. 400 

 Mind, development of, ii. 51, 52, 54 ; 



evolution of, ii. 33 ; influence on 



on nutrition, ii. 106, 107 

 Miocene land, i. 54-6 



Miquel, F. A. W., on Flora of Holland, 

 i. 100 ; on distribution of the beech, 

 ii. 8 ; on flora of Japan, ii. 7 ; men- 

 tioned, ii. I 



Mirabilis, ii. 428 



Mirbel, G. F. B. de, i. 77 



Miscellaneous letters, botanical, ii. 

 242, 333, 371 ; geological, ii. 217-41 



Miscellaneous subjects, letters on, ii. 

 441-8 



Mississippi, Lyell on pampas and de- 

 posits of the, ii. 124 



Mitchella, ii. 272 



Mivart, St. George, biographical note, 

 i. 332 ; false reasoning of, i. 334 ; 

 Genesis of Species, i. 332 



Modification, Darwin's disbelief in sud- 

 den, i. 335 ; explanation of, i. 173 ; 

 of insects, i. 331 ; of jays and crows, 

 i. 171 ; of land and freshwater 

 faunas, i. 233 ; selection and, i. 161 ; 

 of species, i. 182 ; Walsh on specific, 

 i. 250 



Moel Tryfan, Darwin on shells on, ii. 

 167, 190 ; Mackintosh on shells on, 

 ii. 166 



Moggridge, J. T., letters to, i. 337, 

 338 ; ii. 390, 391 ; note on, i. 337 ; 

 experiments on ants and seeds, ii. 

 389-91 



Mohl, von, on climbing plants, ii. 342, 



343 

 Mojsisovics, E. von, letters to, i. 374, 



375 ; ii. 197 ; work on Palaeontology 



and Evolution, i. 375 

 Molecular movement in foliated rocks, 



ii. 206, 207 



Moller, Brasilische Pilzblumen, ii. 360 

 Molliard, on Les Cecidies florales, ii. 425 

 Mollusca, distribution by birds, i. 284, 



285 ; Huxley on, i. 73 ; means of 



dispersal of, i. 441 ; ii. 5, 13, 28, 29 ; 



Morse on protective colours of, ii. 



95 ; Wallace on distribution of, ii. 14 

 Molothrus, occurrence in Brazil, ii. 355 

 Monacanthus viridis, female form of 



Catasetum tridentaturn, ii. 280 

 Monkeys, i. 115; ii. 49; distribution 



of birds affected by, i. 265 ; range 



of, i. 403 ; ears of, ii. 53 ; mane as 



protection, ii. 91 ; wrinkling of eyes 



during screaming, ii. 102 

 Monoch&tum, absence of nectar in, ii. 



297 ; experiments on, ii. 302 ; flowers 



of, ii. 293-6, 299 ; neglected by 



bees, ii. 297 ; seeds of, ii. 284 ; M. 



ensiferum, two kinds of stamens, 



ii. 296 

 Monocotyledons, range of, i. 144 ; 



heterostylism in, ii. 358 



