INDEX AND GLOSSARY 



495 



Holophyt'lc (oAx)«, whole : 4>vT6if, a plant), 



nutrition, defined, 31 

 Holozo ic (oAos. whole: ^uoc, an animal), 



nutrition, defined, 31 

 Homogen'esis (6^6( , the same: ycVco-tv 



origin), meaning of the term, 102 

 HomorogOUS (o^dAoyof , agreeing), applied 



to parts which nave had a common 



origin, 242 



Bomomorph ism homomorph'lc (6mo«, 

 the same : ixopii/rj, form), existing under 

 a single form, i:;9 



Host, term applied to the organism upon 

 wh ich a parasite preys, 123 



HTDRA (vlpa, a water-serpent) : Figures, 



219, 223, 225, 232: occurrence and general 

 characters, 218 : species, 220 : move- 

 ments, 220 : mode of feeding, 221 : m.cro- 

 scopic structure, 222 : digestion, 229 : 

 asexual, artificial, and sexual reproduc- 

 tion 230 : development, 233 



Hydr'anth (iiSpa, a water-serpent : ivBoi, 

 a flower), the nutritive zooid of a hydroid 

 polype, 236 



Hydroid (vtpa, a water- serpent : tiiot, 

 form) Polypes (iroAvirout. many footed), 

 compound organisms, the zooids of which 

 have a general resemblance to Hydra, 

 234 



Hyper'trophy {vntp, over : rpo^i^, nourish- 

 ment), an increase in size beyond the 

 usual limits, 118 



Hyph a {v<i>aivti>, to weave) applied to the 

 separate filaments of a fundus : they 

 may be mycelial (see mycelium), sub- 

 merged, or aerial : Mucor, i6o : Peni- 

 cillium, 185 



Hyp'OdermiS (vir6, under : Sipfia , skin), 

 l-'trn, 41 j, 416 



Hypostome (vn6, under : orofxa, mouth), 



220, 236 



Insola'tion (insolo, to place in the sun), 



exposure to direct sunlight, 94 

 Integument {integumentum, a coveriog) 



of megaspore : Gymnosperms, 456 : 



Angiosperms, 466 

 Inter-Ksellular spaces, 415 

 Inter-muscular plexus (jrAeK«, to twine), 



285 

 Intemode (inter, between : nodus, a 



knot), the portion of stem intervening 



between two nodes, 205 

 Interstitial Unterstltlum, a space be- 

 tween) cells. Hydra, 224: growth, 



Spirogyra, 198 

 Intest'ine Untesilnus, internal), part of 



the enteric canal of the higher animals, 



277 

 IntUS-SUSCep'tion Unius, into: svscipio, 



to take up), addition of new matter to 



the interior, 13 

 Iodine, test for starch, 27 

 Irritability UrHfaM/is, irritable, the 



property of responding to an external 



stimulus, 10 



J 

 Jaws : Craj'fish, 324 : Dogfish, 368, 375 



K 



Karyoklnes'lS (Kdpvov, a kernel or nu- 

 cleus : KiVijo-if, a movement), indirect 

 nuclear division, 67 



Katab Olism (xaro^oA^, a laying down), 

 18. See Metabolism, destructive. 



Kat'astates {KaTaariivai, to sink down), 

 18. See Mesostates, kalabolic. 



Kidney :— Crayfish, 337: Mussel, 359: 

 Dogfish, 396 



Immortality, virtual, of lower organisms. 



Income and expenditure of protoplasm, 



18. 

 Individual See Zooid. 

 Individuation, meaning of th« term, 230, 



252 

 IndUS'ium {ittdutium, an under-garment, 



423 

 Inflores'cenoe (floreseo. to begin to 



flower), an aggregation of cones or 



flowers, 454 

 Infusor'ia (so called because of their fre- 



iliient occurrence in infusions), 107 

 Ingesta (ingero, to put into) and EgOSta 



iegero, to expel), balance of, 32 

 Ingestion (inge>o, to put into), the taking 



in of solid food, 1 1 



Labial palps, Mus.sel, 355 



Larva, the free-living young of an animal 



in which development is accompanied by 



a metamorphosis, 293 

 Larval stages, significance of, Polygor* 



dius, 303 

 Leaf, structure of: — Nitella, 205, 207 : 



Moss, 403 : Fern, 420: limited growth 



of. 211 

 Leaflet, Nitella, 207 

 Leg, Crayfish, 324 

 Lept'othrix (A* ttto?, slender : 6pi(, a hair), 



filamentous condition of Bacillus, 89 : 



Figure, 87 

 Leuc'ocyte (\evK6<; white : icu'to? a hollow 



vessel, cell), a coli uriess blood corpuscle : 



— structure of, in various animals 



t Figures), 57 : ingestion of solid par- 



