INDEX. 



517 



Cnili, liow it acts on the injuring of a 

 linil., 471 



Craniuni of muniniul, ln>w it lUlTii-s from 

 thiit "f the other virtelmita, 114 



Crocodiles, ol»servntii>ns iiimle liy (too<l- 

 «ir in disMuction of, W, 99 ; jH-culiar 

 position of their nostrils, 118, 119 



Cruikshank (William), Anatomy of the 

 Ahsorbin},' VchsiIs of tho Human 

 H(..ly, referred to, 39.'5, 443 



CrusUicea, Geolfroy St. liilaire's opinion 

 of tlieir relations, 79 ; Imiin in, its 

 position, 8U ; develoi)nient of seminal 

 secretion in, 427 ; on the mode of re- 

 production of lost ])arts in, 471-475 



Crystalline column, 278 ; of comitouud 

 eye, 279 



Cuvier, on tho Irono and ivory around 

 J)ullets in tusks of elejihant, 59 ; " os 

 en forme de cuiller" in liz;ird, what, 

 151 



Cydiiinctopa, the most i)rolific Crustacea, 

 429 



Cvdostonious fishes, nasal passage of, 

 "17;M75 



Cyprinoid fish, post-stomal sclerotome, 



'17(J 

 Cystic entozoa, anatomy and develoi>- 



nient of, 47<)-503 

 Cysticercus cdluloims, 490 ; C. ratlm, 

 491 ; C. vcijhctiut, 5h3 ; sjiecies of, 

 found in almost ivery part of human 

 body, 493 



Dalrymple on the structure of human 

 jilacenta, referred to, 446-449 



Davy (Dr.), on tlie tori)etlo, 344 



l)exiotroi>e movements, 200 



Diaceutric sclerotome. 111 



Diaphragms (electric) in torpedo, 290, 

 291 ; in gymnotus, 292, 293 



hiatiniuicca; their mode of reprixluction, 

 212 



Dicotyledonous plants, electrical currents 

 in, 310, 311 



Digestion, functions of, 400, 401 



I)ijilostomum ro/if/w, Nordman, 500 



Discs of mass on each side of tail of 

 skate, their structure, 295 



Diseiusol slnicture in one animal iden- 

 tical with normal structure in another, 

 62, 63 



I>i.ikoiilom{i acephalocystis, 4S3-502 



" Distal" margin in movementa of joints*, 

 248 



Diatomn clnmluttij Owen, 499 



Do<li>, Dinoniis. and other extinct l.inls, 

 structure of iKjnes of lieatl, ir>2, l.''>3 



Douuc, opiKwitc electrical comlitious of 



different i>art>i of vcgetahleii, 308 ; on 

 electric ]>lienomeua of membrane and 

 gland, 319-321 



i^AR, structure of i>arts of, 2S2-2SS 

 /CiJiiniicurniji hui/iiiitJi, 4S0 ; A', rderin- 



onim, 481 

 Ecliiunis ndtjnris, ca'ca of, 41 C 

 Ecker, communication on Uilhant's ana- 

 tomy of electric Nile ft^li, 294, 299 

 E<lentuIous mammals likely to liave 



germs of teeth in f<etal state, 54 

 " Kdinburgh Disse. tor," referrol to, 35. 

 Electric organ, various opinions on it^ 

 action, 338-341 ; fishes do not feel 

 electric discharges prcxluccd by them- 

 selves or otlier individuals of the same 

 species, 343 

 Electrical ajijiaratus in torj>e<lo, gymno- 

 tus, ami other fislies, 289 ; dlsturl)- 

 ances in the processes of living organ- 

 ised botlies, as noticed by Calvani, 

 Matteucci, and Du Bois Ileymond, 299 

 Electricity (oi-ganic), a brief review of 

 the present state of, 306-350 ; |iccu- 

 liar character of that evolved frtjui the 

 batteries of the fish, 342 

 Electrotonic state of ner^e, 333-335 

 Elepliant, successive dentitioiLs conducted 

 in a cavity of reserve, 41 ; on bullets 

 and other bodies inclosed in the tusks 

 of, 56-65. 

 Embryo of sixth week, dental arches in, 

 1 ; seventh week, 4 ; second month, 

 6 ; nine weeks old, 8 ; tenth week, 

 9 ; llth or 12th week, 10 ; 13tli 

 week, 11 ; 14th week, 12 ; 15th week, 

 14 ; 16th week, 16 ; liftli month, IS ; 

 forms must l>e studied in morj'ho- 

 logical in<iuirie8, 83 

 Enamel pulp of llunter, 33 ; dei)osition 



of, 54 

 Endogenous growth of i\-orj', 59 

 Entoniosome, a segmente<l animal, 84 

 Entozoa (cystic), Harry < ' r 



anatomy and develojui, 

 E<iuiangular spiral, its charncterislic 



I>nijK.Tty, 253 

 Eruptive stikt;o of dentition, 44 

 Enll, <Ii 1 on lift • ■" 



Ethmo. tome, 1-- 



able ni>"i : llic liini, Vll' 



130 ; in •. ;i. 130 ; in tho 



en cxliles, 131 : in lacertians, 136; 

 in ophidians, 137 ; in amphibians, 

 13S; views hitherto takvu of it, 139- 

 143 

 Ex < •giiious givwtli of cvmcnt of elephant's 

 tusk, 59 



