INDEX AND GLOSSARY 



Abdomen, Crayfish, 318 



Abiogenesis (a, not : /Si'os, life: y'i/<ris, 

 origin), the origin of organisms from 

 not-living matter : former belief in, 96 



Absorption by root-hairs, 409, 422 



Accre'tion (ad, to : cresco, to grow), in- 

 crease by addition of successive layers, 

 J 4 



Achrom atin (a, not : \pd>/xa, colour), the 

 constituent of the nucleus which is un- 

 affected or but slightly affected by dyes. 

 See nuclear sap 



ACGBlom'ate (a, not : Koi'Awjxa, a hollow), 

 having no coelome (q.v.) '. 299 



Adduct or muscles, Mussel, 354 



Aerob'iC (arjp, air : /Si'os, life), applied to 

 those microbes to which free oxygen is 

 unnecessary, 93 



Agamob ium (a, not : ya/uo?, marriage : 

 /3i'os, life), the asexual generation in or- 

 ganisms exhibiting alternation of gene- 

 rations (g.v.) 



AGAR'ICUS (mushroom) '.Figure, 192 : 

 general characters, 191 : microscopic 

 structure, 193'. spore-formation, 193 



Algae (alga, sea-weed), 169, 432 



Alternation of Generations, meaning of 

 the phrase explained under Bougain- 

 villea, 248 : Moss, 408 : Fern, 429 : 

 Equisetum, 438 : Salvinia, 442 : Selagin- 

 ella, 446 : Gymnosperms, 460 : Angio- 

 sperms, 476 



Ambula cral (ambulacrum, a walking 

 place) groove, 307 : ossicles, 308 : System, 

 starfish, 309 313 



AMCEB'A (aju.<x|36s. changing): Figure. 

 2 : occurrence and general characters, i : 

 movements, 4, 9 : species of, 8 : resting 

 condition, 10 : nutrition, n : growth, 

 13 : respiration, 17 : metabolism, 17 : re- 

 production, 19 : immortality, 20 : conju 

 Cation, 20 : death, 20, 21 : conditions of 

 life, 21 : animal or plant? 180 



Amoeb'oid movements, 4 



Amceb'ula (diminutive of Amoeba), the 



amoeboid germ of one of the lower or- 



ganisms. 51, 54 

 Anab'olism (ai/a/3oA>j, that which is 



thrown up). See Metabolism, construc- 



tive. 

 Anaerobic (a, not : aijp, air : /Sios, life), 



applied to those microbes to which free 



oxygen is unnecessary, 93 

 An'al (antes, the vent) segment, Poly- 



gordius, 270 



An'al spot, Paramoecium, 113 

 An astates (ai/ao-TOTO?, from ai/aonji/ai, 



to rise up). See Mesostates, anabolic. 

 Anatomy (avare^vnt, to cut up), the study 



of the structure of organisms as made 



out by dissection, 289 

 Androe ciurn. (avrip, a male : ot/co<?. a 



dwelling), the collective name for the 



male sporophylls in the flower of Angio- 



S (ayyelov, a vessel: 

 (TirepfjLa, seed) : Figures, 462, 465, 467, 

 470, 472 : general characters, 461 : 

 structure of flower, 463 : reduction of 

 gamobium, 474 : pollination and fertiliza- 

 tion, 469, 475 : formation of fruit and 

 seed, and development of the leafy plant, 

 476 



Animal, definition of, 179 



Animals, classification of, 320 



Animals and Plants, comparison of type 

 forms, 176 : discussion of doubtful forms. 

 180 



Animals, Protists, and Plants, boun 

 daries between artificial, 182 



Annual Rings, 450 



Anodonta (a not : oSovs, a tooth). See 

 Mussel 



Antenna (antenna, a sail-yard), 325 



Antennary Gland. See Kidney 



Antennule (dim. of antenna), 325 



Anther, 454, 464. 466 



Antherid ium. See Spcnnary. 



