XXV111 



INDEX. 



relations of, to Fungi, ii. 159; to 

 lower Algce, liii-lviii ; to Mosses 

 and Fungi, Ixvi ; interchangeabi- 

 lity of Algse, ii. 452. 



Liebig, Baron, on physical theory of 

 fermentation, i. 403 ; analogy of 

 fermentation to some vital pro- 

 cesses, i. 425 ; formation of albu- 

 minates in plants, ii. 30. 



Life, views of ancient philosophers 

 concerning, i. 56 ; vitalistic theo- 

 ries of, i. 59 ; Dr. Bence Jones on 

 physical theory of, i. 62 ; defini- 

 tions of, i. 70-77; dependent upon 

 certain material collocations, i. 

 78 ; not abruptly limited, i. 79 ; 

 speculations concerning original 

 evolution of, i. 93 ; physical the- 

 ory of, reconcilable with vital 

 phenomena, i. 104; succession of, 

 on the earth,i. 137-142; charac- 

 teristics of, displayed by proto- 

 plasm, i. 153; doctrines concern- 

 ing, i. 308 ; destruction of, by 

 heat, ii. 3 ; evolution of, ii 103 ; 

 dependence of, upon decomposi- j 

 tion, ii. 185; theories concerning, 

 ii. 1 74 ; variability of primordial 

 forms of, ii. no, 137, 143, 145. 



Lindley, Dr., on reproduction of 

 Algals by zoospores, i. 171; on 

 zoospores in Achlya, i. 180. 



Lindsay, Dr. Lauder, on relationship 

 between Fungi and Lichens, ii. 1 59. 



Living matter, conversion of not- 

 living into, i. 103, ii. 77; no dis- 

 tinct line between not-living and, 

 i. 127; influence of heat upon, i. 

 429; origin of, from colloid mole- 

 cules, ii. 26 ; process of produc- 

 tion of, ii. 27 ; the result of mole- 

 cular combination, ii. 27; pro- 

 duction of, in saline solutions, ii. 

 30; influence of organic impuri- 

 ties on evolution of, within closed 

 flasks, ii. 33 ; influence of exter- 

 nal conditions on development of, 

 ii. 107; nature of, ii. 123; differ- 

 entiation of, identical with organ- 

 ization, ii. 127; discontinuous 



growth of, ii. 138; various forms 

 assumed by new-born, ii. 155 ; 

 influence of iron upon, ii. 158; 

 formation of, in living organisms, 

 ii. 185; homogeneous, tends to 

 become heterogeneous, ii. 585 ; 

 heterogeneity of, principally de- 

 pendent on internal polarities, ii. 

 586 ; initial differences of, ii. 592 ; 

 possibility of silicon replacing 

 carbon in, x. 



Living things, definition of, i. 72 ; 

 nature of matter of, i. 83, 96 ; 

 origin of lowest, compared with 

 that of crystals, i. 298 ; resistance 

 of, to heat, i. 317, 429; occur- 

 rence of, in vacuo, i. 347-350 ; 

 origin of, from organic matter, ii. 

 308 ; persistence of forms of low- 

 est, ii. 104-108; modes of origin 

 of, ii. 545 ; nature of lowest, ii. 

 557 ; Developmental tendencies 

 of, ii. 558. 



Longet, on contractility of muscle, 

 i. 28. 



Lyell, Sir Chas., on geological re- 

 cord, ii. 623. 



Maddox, Dr., on atmospheric germs, 

 ii. 283. 



Malaria, cxxxv. 



Man, origin of, ii. 622, 628; his 

 advent, ii. 628 ; development of 

 brain of, ii. 628, 630 ; his intel- 

 lectual and moral nature, ii. 629; 

 probable date of first appearance, 

 ii. 629 ; limits to variation of ex- 

 ternal form of, ii. 630 ; improve- 

 ment in race of, ii. 631 ; preju- 

 dices concerning origin of, ii. 631 ; 

 future of the race, ii. 633. 



Mantegazza, Prof., researches of, i. 

 263, 434. 



Matter, indestructibility of, i. 3 ; in- 

 separability of force and, i. 4. 



Max Schultze, nature of cell, i. 1 50. 



Measles, cxliii, cliv. 



Medicine, practice of, influenced by 

 theories, cix. 



