I N D EX. 



XXIX 



f silicon rept: 



'> tiefinition of i 

 matter of, i, \ 

 ^'^vest, compared 



•tnls, i. 298;rei 



' ^- 3i7> 429; o( 

 a vacuo, i. 3^;.; 



■om organic matte 

 lence of forms oC 

 108 ; modes ofo: 

 nature of lowes: 

 :lopinental tenfc 



r 



)ntractility of m. 

 as., on geolagia 



\ 



Dn atmospheric p 



r. 



of, ii. 622, 628; 

 52S; developnieE' 



, 628, 630; te| 

 moral nature, u." 

 .te of first appear 

 its to variation i 



:e of, u- 631;/, 

 ■ningorig-f"' 

 ; race, u. 633, ^ 

 ^rof.. researches 



ructibilHy of j \ 

 of force an^^i 

 nature of ce'^' 



:tice 01, ^' 



of power in contraction of, i. 33, 

 54 



Medusa, direct development of some 



explained, ii. 571. 

 Metamorphosis (see Transforma- Mushrooms, cultivation of, ii. 433. 



tion), 



Meunier, M. Victor, experiments of, 



with bent-neck flasks, ii. 8. 

 Micrococci, Prof. Hallier, i, 283. 

 Milk-globules, conversion of, into 



fungus-germs, ii. 310. 

 Milne-Edwards, M., on Pansper- 



# • 



mism, n. 271. 



Mites, probable mode of origin of, 

 ii. 540 ; reproduction in, ii. 551. 



Mivart, Mr. St. G., on cause of or- 

 ganization, ii. 583; on internal 



tendencies to, ii. 601. 



Molecular composition, nature of 

 bodies dependent upon, ii. 49. 



Monads, description of, i. 267; evo- 

 lution of, ii. 196, 388; origin of, 

 in pellicle, ii. 196, 212, 214; 

 interchangeability of Amoebae 

 . and, ii. 218 ; 



origin of, from 



embryonal spheres of Nitella, ii. 

 402 ; from chlorophyll corpuscles, 

 ii. 409 ; from outgrowths of Eu- 

 glenoe, ii. 436 ; resolution of Eu- 

 glenoe into, ii. 440. 



Monera, growth and reproduction 

 of, i. 153. 



Montgomery, on cell-forms assumed 

 by Myeline, i. 52. 



Mosses, origin of, from Confervse, 

 ii. 452; observations of M, de 

 Brcbisson on, ii. 454 ; relations of, 

 to Lichens and Algse, Ixiii-lxvi. 



Moxon, Dr., on fission of Ciliated 

 Infusoria, ii. 291. 



Mucous membranes, development of 

 organisms on, ii. 345. 



Miiller, O. F., on spontaneous gen- 

 eration, ii. 179, 



Mumps, cxxxix. 



Murchison, Dr., on origin of fevers, 

 cxl. 



Murphy, Mr., on origin of species in 

 wild state, ii. 598. 



Muscardine, nature of, ii. 324-330. 



Muscle, contractility of, i. 26 ; 



mode of action of, i. 30 ; source 



Naides, a probable origin of, ii. =40, 



Natural Selection, ii. 107 ; Mr. Dar- 

 win on, ii. 572 ; meaning of 

 phrase, ii. 572-576; limitation to 

 influence of, ii. 573; two mean- 

 ings of, ii. 574, 600. 



Nectarine, convertibility of, and 

 Peach, ii. 596, 598. 



Needham, on spontaneous genera- 

 tion, i. 258 ; theory of life, ii. 174. 



Nematoidea, development of ova 

 in, i. 200 ; origin of, from Eu- 

 glena?, ii. 466 ; transformation of 

 Actinophrys into, ii. 525; mode 

 of origin of, from resting-spore of 

 Vaucheria, ii. 529; reproduction 

 in, ii. 532. 



Nerve activity, source of heat during, 

 i. 40. 



Nervous system, constituents of, i. 

 35 ; functions of, dependent on 

 blood-supply, i. 37; persistence 

 of function after apparent death, 



i- 37. 



Neurility, i. 36. 



Newport, Mr., on vital forces, i. 17. 



Nicolet, on germ-formation in x\moe- 

 bce, i. 197; modes of origin of 

 Amoebae and Actinophrys, ii. 382 ; 

 mode of origin and transforma- 

 tions of Trichomonas, ii. 384 ; 

 transformations in Chara fila- 

 ments, ii. 474 ; heterogenetic ori- 

 gin of Rotifers, ii. 509 ; on Amoe- 

 bce, xc. 



Nitella, transformations in, ii, 399 ; 

 transformations of Chlorophyll 

 corpuscles of, into Monads and 

 Amoebae, ii. 407 ; formation of 

 embryonal spheres in, ii. 400 ; 

 their transformations into Bacte- 

 ria and Pythium corpuscles, ii. 

 401 ; into Monads, ii. 402; into 

 Amceboe and Actinophrys, ii. 404; 

 into Ciliated Infusoria, ii. 404; 



r 



