SUBJECT-INDEX. 



501 



Hyriapoda : integration and homology, 

 2, 99-102 ; genesis, S, 425. 



Nhis, mammalian, 1, 383. 



Natural selection : structural modifica- 

 tion, i, ] 68 ; homogenesis and hetero- 

 genesis, 1, 233-7 ;, aided by function, 



1, 2-46-52 ; special creation, 1, 340-4 ; 

 ind-rtct equilibration, 1, 444-9, 466, 

 474 ; changes without, 1, 449-57 ; 

 econcimical tendency, /, 450 ; general 

 doctrine of evolntion, 1, 457-62, 474 ; 

 unceasing, 1, 468 ; ethnologic, 1, 468 ; 

 vegetal nutrition, S, 48 ; upright 

 Tegetal growth, i, 53 ; endogenous 

 growth, S, 54 ; exogenous, ;?, 61 ; 

 gemmation, S, 90 ; navicula symme- 

 try, S, 121); fohar position, 2, 143; 

 foliar distiibution, ;?, 152 ; floral fer- 

 tilization and symmetry, Z, 153-5, 

 571-4; hehcal phcenoganiic growth, 



2, 164 ; ecMnodermata and bilateral 

 symmetry, S, 179 ; vertebrate axis 

 segmentation, £, 204 ; phoenogamic 

 tissue differentiation, S, 230 ; physio- 

 logical difperentiation, B, 235, 239 ; 

 foliar wax deposit, S, 244; foliar 

 surfaces, ^, 246 ; floral fertilization, 

 2, 252 ; sexual selection, S, 253 ; inner 

 Tegetal tissue differentiation, S, 2H2 ; 

 wood formation, S, 270-1, 273-4; 

 animal tissue differentiation, S, 286- 

 90; differentiation of respiratory sys- 

 tem, S, 293-5 ; epidermic ditferentia- 

 tion, f , 295-9 ; sensory organ deve- 

 lopment, 2, 307 ; skin and mucous 

 membrane differentiation, S, 308; 

 localization of excretion, S, 320-1 ; 

 respiratory organs of fish, S, 324^7 ; 

 heart and vascular system, j?, 332, 

 334 ; osseous differentiation, S, 345 ; 

 also muscular, S, 354, 359-61 ; insect 

 nutrition and genesis, S, 467 ; genesis 

 and individuation, 2, 472; economics of 

 evolution, 2, 474-8 ; Darwin, S, 500 ; 

 vegetaltissue formation,;?, 551,563-5 ; 

 origin of vertebrate type, *, 568. 



Navicula, symmetry, S, 120. 



Semertida : integration, S, 94 ; bilateral 

 symmetry, 3, 178. 



Nerves : electricity fi-om, 1, 48 ; genera- 

 tion of nerve-force, 1, 49-53, 57 ; 

 differentiation, 1, 159; 2, 346-51, 

 352 ; vuseulo-motor system, 1, 1(J2 ; 

 ■"carious function, 1, 166; over-exer- 



tion and waste, 1, 171 ; adaptability, 

 1, 180, 189, 193 : hereditary ef llepsy, 

 1, 25 L; muscular differentiation, 2, 

 354. (See also Psychology). 



Nervousness, and heredity, 1, 244, 251. 



New Zealand, European planl^ in, 1, 

 389, 401. 



Nitric acid, properties, 1, S, 8, 9. 



Nitrogen ; chemical and physical proper- 

 ties, 1, 3-5, 20, 22 ; binary compounds, 

 1, 6, 8, 9 ; instabihty of compounds, 



1, 8, 37, 39 ; 2, 232 ; quaternary com- 

 pounds, 1, 12-14, 23 ; organic impor- 

 tance, i, 39-41 ; evolution of heat apd 

 oxidation, 1, 44 ; tissue differentiation, 



2, 382-4 ; nutrition and genesis, 2, 461. 

 North American Review: "Philosophicul 



Biology," 1, 479-84; "Physiological 



units," 1, 484-94. 

 Notocliord : formation, 2, 199-^01, 569 ; 



segmentation, 2, 202-5. 

 Nutrition : organic re-arrangement, t, 



34 ; nitrogenous and non-nitrogenous, 



1, 44, 45 ; 2, 353 ; food assimilation 

 and reasoning, 1, 62-8; needful for 

 vital change, i, 75 ; relation to growth, 

 1, 112, 114, i]6, 119-21, 122, 127, 131 ; 

 expenditure of force, 1, 154, 306; 

 fluid, 1, 165; vegetal growth, /, 

 224-8, 232, 235-7 ; animal growth, 1, 

 228-33, 235-7; Dr. E. Darwin on 

 procuring, 1, 407 ; leaf development, 

 S, 30, 71-4; vegetal development, 2, 

 48, 162, 259 ; axillary buds, 2, 61-5 ; 

 defective,,?, 70; vegetal inflorescence, 



2, 163; helical phoenogamic growtli, 

 2, 164; vegetal fructification, 2, 250 ; 

 action of bUe, 2, 317 ; osseous develop- 

 ment, 2, 340, 344; genesis, 2, 399, 

 402, 407, 41 5-7,432; of young, a paren- 

 tal loss, 2, 401, 408, 409 ; distribution, 

 2, 413 ; reproductive system, 2, 430 ; , 

 animal development and genesis, 2^ 

 444 ; expenditure and genesis, 2, 447 ; 

 vegetal genesis, 2, 454, 484; agamo- 

 genesis, 2, 455 ; genesis and edect ol 

 conditions, 2, 455-9 ; obesity and 

 genesis, 2, 459-62, 484 ; general 

 doctrine of genesis, 2, 463 ; genesis 

 and vegetal parasitism, 2, 463 ; also 

 animal, 2, 461-6; insect genesis, 2, 

 466-8 ; genesis, resume, 2, 470-2 ; 

 and evolution, S, 474-8 ; of blackbird 

 and linnet, 2, 476 ; genesis in human 

 race, 2, 481-3, 487-9 ; Doubleday ou, 

 2, 483-5 : future human evolution, 



