Index 



459 



EEXACTINELLIDA, heksaktmel'ida 



(G. hex, six -f- actis, ray) 421, 430 



An order of Porifera, such as the 

 deep sea-sponges. 



EEXAPODA, heksap'oda (G. hex, six 

 + pons, foot) 329 



HIND BRAIN 66 



HIPPOCRATES 377 



EIRUDINEA, hirudin'ea (G. hirudo, 



leech) 284, 423, 431 



A class of Annelida without setae 

 or parapodia, but with suckers. 



EIRVDO MEDICINALIS, hiru'do (L. 

 hirudo, leech) 283 



HISTOLOGY, histol'oji (G. histos, 



tissue + logos, discourse) 31 



Of frog 109 



Plant .... .229 



HISTORIA ANIMALIUM V 379 



HISTORY OF BIOLOGY 376, 393 



HODGE 371 



HOFER 125 



HOLDFAST 188 



HOLOCEPHALI, holosefale (G. holos 

 + kephale, head) 427 



H L B L A S T I C, hol'oblas'tlk ( G. 

 holos, whole + bias tos, germ) 280 



HOLOMETABOLOUS, hol'ometab'olus 

 (G. holos + metabole, change) 332 



HOLOPHYTIC, holoflt'ic (G. holos + 

 phyton, plant) 129 



HOLOSTEI, holos'te'i (G. holos, whole 

 + osteon, bone ) 427 



EOLOTE UROIDEA, holothuroi'dea 

 (G. holos, whole + thourios, rush- 

 ing) 422, 431 



A class of Echinodermata with 

 ovoid, muscular body-wall and ten- 

 tacles around mouth. Example : sea- 

 cucumbers. 



EOLOTRICEA, holot'rika (G. holos, 



whole + thrix, hair) 154, 421 



An order of Ciliata. 



HOLOZOIC, hol'ozo'ik (G. holos + 

 zoon, animal ) 130 



EOMOCOELA, homose'la (G. homps, 



same + koilos, hollow) 421 



An order of Porifera. 



HOMOGENEOUS, homoje'neus (G. 

 homos + ge'nos, race or family) .... 112 



HOMOLOGIES 120 



Serial 317 



HOMOLOGUE, hom'olog (G. homos + 

 logos, speech) 65 



EOHOPTERA, homop'tera (G. homos 



+ pteron, wing) 424 



An order of Rhynchota. 



HOMOZYGOTE, hom'ozl'got (G. homos 

 -f- zygein, to yoke) 168 



HOMOZYGOUS, homo'zigus (G. homos 

 + zygein, to yoke) 168 



HOOKE, ROBERT 379 



HOOKER 386 



HOOKWORM EGGS 802 



HUMERUS, hu'merus (L. the bone of 



the upper arm) 76 



HORMONE, hor'mon (G. hormao, to 



excite ) 52 



HORSE-HAIR SNAKES ........... '.30B 



EORSETAILS 225 



EORTUS 8 AN IT ATI 8, hor'tus sanita'- 



tis (L. hortus, garden -f- sanitas, 



health) 378 



HOSTS OF TAPEWORMS 298 



HOW TO STUDY 27 



HUMUS, hu'mus ( L. humus, earth ) . . 263 



HUNTER, JOHN 381 



HUXLEY, THOMAS 367, 381, 386 



HYALINE, hl'alin (G. hyalos, glass). 112 

 HYALOPLASM, hi'aloplasm (G. hyalos 



+ plasma, something moulded) .... 90 

 E YD AT IN A, hldat'ma (G. hydatis, 



watery vesicle ) 309 



EYDRA FUSCA, hi'dra fus'ka (G. 



hydra, water snake; fuscus, dark 



brown) 248 



HYDRANTH, hl'dranth (G. hydor, 



water + anthos, flower ) 253 



EYDRAZOA, hi'drazo'a (G. hydor + 



zoon) 251, 421, 430 



A class of Goelenterata. 

 HYDROCAULI, hl'dro'koli (G. hydor 



+ kaulos, stalk) 253 



EYDROCORALLINAE, hldrokorali'ne 



(G. hydra, water + L. corallinus, 



coralline) 421 



An order of colonial Eydrozoa. 

 EYDROFUGE PLATES, hi'drofug (G. 



hydor + L. fugare, to put to flight) .138 

 HYDROMETERS, hidrom'eter (G. 



hydromeirion, a vessel for measur- 

 ing hydrostically) 38 



EYDROPEYLLWM, hldrofil'mm (G. 



hydor + phyllon, leaf) 256 



EYDROPEYLLUM, hi'drofil'um (G. 



hydor + phyllon, a leaf) 243 



HYDRORHIZA, hl'drori'za (G. hydor 



+ rhiza, root) 253 



HYDRO TH EGA, hi'drothe'ka (G. 



hydor + theke, cup ) 253 



HYGROMETERS, higrom'eter (G. 



hygros + metron, a measure) 38 



HYGROSCOPIC, hi'groskop'ik (G. 



hydros, wet + skopein, to regard), 



definition of 217 



HYMENIUM, hime'neum (G. hymen, 



skin) 208 



EYHENOLEPIS DIMINUTA, himenol'- 



epis . . 298, 302 



Nana (G. nanus, dwarf) 298 



EYMENOPTERA, hrmenop'tera (G. 



hymen -f~ pteron, wing) 3^6, 425 



A sub-class of Siphunculata. 

 HYOGLOSSUS, hi'oglos'us (G. Y + 



glossa, tongue) 81 



