522 



INDEX. 



Ratlike on pituitary liody, 82 ; on bran- 

 chial clefts and qiiadrilateral bodies 

 on each side of chorda dorsalis, 89 

 Ray, Hallman on the testicle of, 413 ; 



tail of, 295 

 Reflection of light from bottom of eye, 



270 

 Reid (Dr. John) on placenta, obser- 

 vations of, 457, 458 

 Remak, observations on dorsal quadri- 

 lateral bodies, 89, 90 

 Reproduction of lost parts in the Crus- 

 tacea, Harry Goodsir on, 471-475 

 " Reserved " and " restricted," terms 

 employed in distinguishing the ar- 

 ticular elements in their resi^ective 

 conditions, 247, 261 

 Respiratory mucous membrane, electric 



relations of, 322 

 Retina, memoir on the, 265-272 ; how 



light acts on the, 273-281 

 Retzian tubes of ivory, 61 

 Retzius on microscopic structure of 



dental substances, 62 

 Rejnnond (Du Bois), on the law of the 

 muscular current, 324 ; electric cur- 

 rents in nerves, 331-338 

 Rhinal sclerotome in mammals, 115 ; 



rudimentary in crocodiles, 117 

 Right angle, division of, enables artist 

 to get a proper succession of lines in 

 drawing, 214, 215 

 Robin on organs in the tail of the ray 



fishes, 297 

 Robison (Sir John), specimens of bullets 



in ivory presented by, 56 

 Rods of retina, 265 ; seat of impression 

 of light, 269, 274 ; Goodsir's opinion 

 not nervous structures, 270, 274 

 Root, electrical currents in, 313 

 Rokitansky, on matter peculiar to tj^hus 



fever, 378 

 Rudolphi on the troughs in gymnotus, 

 292 ; on the prisms in torpedo and 

 gymnotus, 301 

 Ruminants, follicular stage of dentition 



in, 53-55 

 Ruysch figures bullets in ivory, 58 



Saccular stage of dentition, 44 

 Sarcina ventriculi, history of a case in 

 which a fluid periodically ejected from 

 the stomach contained vegetable or- 

 ganisms of an undescribed form, 351- 

 371 ; definition of genus and species, 

 361 ; how its form is prodiiced, 211 

 Savi on the elementaiy filaments of the 

 nerves in battery of electrical fishes, 

 290 



Screotrope movements, 260 



Sclionlein, " general pathology " re- 



feiTed to, 378 

 Schwann on the secreting organs of 



mucous membranes, 412 

 Sclerome of Goodsir, 85 ; in vertebrate 

 embryo, its sources and modes of 

 origin, 88, 93 ; sclerotome, 85 

 Screw-configuration of articular surfaces 

 of elljow, ankle, and calcaneo-astraga- 

 loid joints, 237 ; movements in knee- 

 joint, 243-245 

 Scrofulous disease of joint, 410 

 Secondary dental groove, 30-41 ; teeth, 



55 

 Secreting structures, Goodsir's memoir 



on, 412-428 

 Secretion diS"ers from absorption mor- 

 phologically, 398 

 Secretions, three orders of, 423 

 Semilunar cartilages of human knee-joint, 

 their movements and relations, as ob- 

 served by Goodsir, 227-229 

 Seminal secretion of decapod ci-ustacea, 



develop)ment of, 427 

 Serous membranes, structure of, 436-438 

 Serres, I'Anatomie et la Physiologic des 



Dents, referred to, 22 ; 

 Shaft of a long bone, on the mode of re- 

 production after death, 465 

 Sharpey (Dr.), on impregnated uterus, 

 452 ; on the entozoa of nerves of had- 

 dock and whiting, 496, 497 

 Sheep, follicular stage of dentition in, 

 63 ; sujira-renal, thjnnus, and thyroid 

 bodies in the embryo of, 68 ; entozoon 

 foimd in its brain, 487 

 Shells of molluscous animals examined 

 geometrically by Professor Moseley, 

 209 

 Simple eye, its physiological superiority 



to compound eye, 281 

 Simplicity of natural law consists in the 

 comprehensiveness of its general prin- 

 ciples, 185 

 Skate, fusiform mass on each side of the 

 taU in, exhibiting all the structural 

 characteristics of an electrical battery, 

 295 ; nervous twigs, 299 

 Slough in soft parts separated from 



living textures, 406 

 Somatome of Goodsir, 84 

 Spear-head found in tusk of elephant, 64 

 Spheroidal bodies on brain are entozoa, 



495 

 Sijhairidion aceplmlocystis, 487, 492, 503 

 Sphenoidal turbinated bones, 158 

 Spongiole of root of plant, an active 

 organ of growth and of absorption, 401 



