518 



INDEX. 



External lamella of Blake, 33 



Eye : on the raode in which light acts on 

 the ultimate nervous structures of the 

 eye, and on the relations between sim 

 pie and compound eyes, 273-281 



FACETS of patellar surface, peculiarity of, 

 234 



Faraday on the power of gymnotus to 

 strike fish motionless, 304 ; his re 

 searches on electricity, 306 ; on the 

 atmosphere of power around fish at 

 the time when electric organs are dis- 

 charged, 343 



Figures, Mr. D. E. Hay shows how they 

 might be drawn in good proportion, 

 214-219 



Filamentary layer of the retina, 267 



Fin-rays of fishes, 105 



Final causes, the study of, furthering the 

 progress of biology, 206 



Fishes, bony rays of, 104 ; composition 

 of head, 113 ; from size of organs of 

 vision have great development of prin- 

 cipal frontal, 156 



Flower, electrical condition of, 314 



Follicular stage of dentition, 44 ; in 

 ruminants, etc., 53-55 



Food, changes of, in gut, of a chemical 

 nature, 400 



Formation and growth of ivory, 60 



Fox, Natural History of the Human Teeth, 

 referred to, 33 



Frog, Galvani's observations on electrical 

 contractions in the muscles of, 322 ; 

 Nobili on electric current in nerve 

 and muscles of, 323, 328, 330, 334 ; 

 palatals in 161-163 



Fruit, Donne's observations on electrical 

 condition of, 315 



GALATHEA, testis in, 431, 434 



Galvani on animal electricity, 319, 322 



Gelatinous body between pulp and sac 

 of teeth, 20 



Generation of Sarcina, 358 ; (organs of) 

 in male crustacean, 429 



Geoffrey St. Hilaire detects tooth-germs 

 in foetus of whale, 54 



Geometrical formation of shells shown 

 by Professor Moseley, 209-211 ; cha- 

 racter of the configuration and move- 

 ment of central articular facets, 247-264 



Germinal membrane, 391-392, 400; 

 spot of the ovum, centre of nutrition, 

 389 



Germination of plant, electrical rela- 

 tions of plant to soil and air reversed | 

 after, 310 



Germs of the teeth, 43 ; of canine and 

 upper incisors in embryo of cow and 

 sheep, 53 



Giraffe, antlers of, 149 

 Gland, electric relations of, 321 

 Goethe on the elements of three distinct 



cranial segments, 197 

 "Go-lines" of ankle-joint, 237 

 Gold ball found at Amsterdam in ele- 

 phant's tusk, 57 

 Gold-fish, on the confei-va vegetating on 



the skin of, 345-350 

 Gonidium, a genus of Ehrenberg's, 360 

 Gonium, how its square form is pro- 

 duced, 211 ; characters of the genus, 

 359 ; G. hyalinum, glaucum, pectorale, 

 punctatum, tranquilhim, 360 

 Goodsir (Harry), paper on the develop- 

 ment and metamorphoses of caligus, 

 referred to, 424 ; the testis and its se- 

 cretion in the decapodous crustaceans, 

 429-435 ; the mode of reproduction 

 of lost parts in the Crustacea, 471- 

 475 ; on the anatomy and develop- 

 ment of the cystic entozoa, 476-503 

 Granulations of surgical pathologists, in 



reproduction of bone, 469 

 Gray cellular layer of the retina, 266 

 Growth and secretion, centripetal, 418 

 Gruby, microscopic character of morbid 



products referred to, 378 

 Gymnorhynchits horridus in liver of sun- 

 fish, 494 



four batteries in, 291 



Hdbenula sulcata, 283 ; denticulate,, 

 284 



Haemal arch, Goodsir's remarks on Pro- 

 fessor Owen's view of, 97-100 



Haemaipod, Goodsir's term for a verte- 

 brate animal, 85 



Haemome, hsematome, terms of Good- 

 sir's, 86 



Hannover on .conferva of frog and newt, 

 350 



Havers (Clopton) on vascular fringes of 

 synovial membranes, 437, 438 



Haversian canals in bone, 406, 462 ; in- 

 flammatory changes, 468 ; glands or 

 synovial pads, 227, 228, 235 



Hay (D. R.) examined the geometric 

 outline of the human body, 213-219 



Head (vertebrate), morphological con- 

 stitution of its skeleton, 88-197 



ffelianthus Merosus, electrical currents 

 in tubers of, 313 



Helicoid curve of movement in knee- 

 joint, 238, 241 



Helix algira, cells in kidney of, 413 ; 



