896 



INDEX 



AUTOTROPH1C, Ot'otrof'ik (G. autos, 



self + trephein, to nourish) 



AVE8, ay'veez (birds) 425, 431, 656 



AVICULARIA, fivikiilfi'ria (G. avicula, 



diminutive of bird ) 309 



AWARENESS, definition of 174 



AXIALITY 



The growth along a definite axis. 



AXIAL SKELETON, definition of 73 



AXIAL THICKENING, definition of.. 538 

 AXIL, ak'sil (L. axilla, arm-pit) .203, 217 

 AXILLA, axill'ah (L. axilla, a little 



axis ) ' 831 



AXILLARY, ak'silari (L. axilla) .203, 792 



Pertaining to axil; growing in the 

 axil, or pertaining to the arm-pit. 

 AXIOM (L. aucioma, a self-evident 



proposition) 88 



AXIS, definition of 684 



AXIS CYLINDER 114 



The central tract of a nerve fiber. 



AXIS OF EGG 553 



AXOLOTL, ak'solotl 554, 648 



A Mexican tailed amphibian which 

 remains in the larval state. 



AXON, ak'son (G. axon, axle) 68 



The axis-cylinder process of a 

 multipolar nerve-cell. 

 AZYGOUS, az'eegos (G. a, without; 

 zygon, yoke) 698, 797 



BACILLUS, basfl'us (L. bacillum, a 



small stick) 190 



Rod-shaped bacteria.' 



BACKGROUNDS 157 



BACON, ROGER 378 



BACTERIA, bakte'ria (G. bacterion, 



rod ) , definition of 190 



rate of increase 192 



BACTERIOTROPIN, bfikter'iotro'ptn, 

 definition of . . 200 



BACTERIUM ACTINOCLADOTHRIX, 



bakte'rlum ak'tinoklfid'othriks (G. 

 aktis, ray -j- klados, branch + thrix, 

 hair) 214 



BALAENA MYSTECETUS, bule'na 



(L. balaena, whale) 662 



BALANCING ORGAN, definition of.. 323 



B A L A N GLOSSUS CLAVIGERUS, 



bahl'anohgloss'us ( G. balanos, 

 acorn -f- ylossa, tongue) 546 



BALANTIDIUM COLT, balantid'ium 

 (G. balantidium, a little bag) 144 



BALEEN, bnlon' (L. balaena, whale), 

 definition of . .737 



BALEEN WHALES 663 



BARBERRY, biir'ber'i (M. L. barbaris, 



berry ) 243 



A shrub whose ill-smelling flowers 



produce red berries of a pleasantly 



acid flavor. 



BARBS (L. barba, beard) 671 



Thread-like structures. 

 BARBULES, bfir'buls) (L. diminutive 



of barba ) 670 



BARK, definition of 231 



BASAL, ba'sfil, at or near the base. . .218 



BASAL DISC 248 



BASALE, basfi'le, bfisa/lfi (L. las-is, 



base ) 690 



BASAL GANGLION, definition of .... 848 



BASAL PLATE, definition of 615 



BASCANION ANTHONYI STEJNE- 



GER, baska'nion .. . , 416 



A genus of snakes, such as the 



blacksnake. 



BASIDIOMYCETES, bfistd'tomlce'tes 

 (G. basis + mukus, fungus) . .201, 209 



BASIDIUM, bnstd'ium (G. basis, 



base) 207 



A special cell of certain fungi 

 forming spores by abstriction. 



BASI-HYAL, ba'sihl'al (G. basis + 

 hyoeides, y-shaped ) 738 



BASILAR PLATE, bas'ilar, definition 

 of 540 



BASIOCCIPITAL, bfi'siokslp'itfil (L. 

 basis + occiput, back of head) 73 



BASIPODITE, bnsip'odite (G. basis + 

 pous, foot), definition of 314 



BASLE NOMENCLATURA ANATOM- 



ICA, bal nomenklatu'rfi 416 



BAST (A. S. baest, bast), definition 

 of 230 



BATESON, PROFESSOR 388, 679 



BATOIDEA, ba'toi'de'fi (L. batus, a 



genus of fishes ) 424, 642 



A sub-order of Plagiostomes hav- 

 ing ventral gill-openings. 



BDELLOSTOMA DOMBEYI, de'los'to- 

 mfi (G. bdella, a leech + stoma, 

 mouth) ; named for J. Dombey, 



French botanist 641 



Cyelostomes having suctorial 

 mouths resembling those of leeches. 



BDELLOSTOMA POLYTREMA (G. 



poly, many + trema, hole) 7/3 



Myzonts having many pairs of 

 branchial apertures. 



