518 



INDEX. 



External lamella of Blake, 33 



Eye : on the mode in which light acts on 

 the ultimate nervous structures of the 

 eye, and on tlie rolatious lietweeu sim- 

 ple and compoimd eyes, 273-281 



Facets of patellar surface, peculiarity of, 

 234 



Faraday on the power of gymiiotus to 

 strike fi.sli 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. R. Hay shows how they 

 misj;ht be di-awn 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 jjrin- 

 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 gro\\i;h 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 Sarchui, 358 ; (organs of) 

 in male ciiistacean, 429 



Geoffroy St. Hilaire detects tooth-germs 

 in foetus of whale, 54 



Geometrical formation of shells sho^\^l 

 by Professor Moseley, 209-211 ; cha- 

 racter of the configuration and move- 

 mentof central articular facets, 247-264 



Germinal membrane, 391-392, 400 ; 

 spot of the ovum, centre of nutrition, 

 389 



Gennination of plant, electrical rela- 

 tiojis of plant to soil and aii- reversed 

 after, 310 



Germs of the t^eth, 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 tlu'ee 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 

 Gonidlurii, a genus of Ehrenberg's, 360 

 Gonium, liow its square form is \)yo- 

 duced, 211 ; chai-acters of the genus, 

 359 ; G.hyalimmi, (jlaucum, 2Kctorale, 

 ■punctatum, tranquUlum, 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 

 Gruljy, microscopic character of morbid 



products referred to, 378 

 Gymnorhynchushorridus in liver of sun- 

 fish, 494 

 Gymnotus, four batteries in, 291 



Ilabcnula sulcata, 283 ; denticulata, 

 284 



Ha-mal arch, Goodsir's remarks on Pro- 

 fessor Owen's view of, 97-100 



Hsemapod, Goodsir's term for a verte- 

 brate animal, 85 



Haemome, haeraatome, terms of Good- 

 sir's, 86 



Hannover on conferva of frog and newt, 

 350 



Havei's (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), mor^jhological con- 

 stitution of its skeleton, 88-197 



Helianthus tuberosus, electrical currents 

 in tubers of, 313 



Ilelicoid curve of movement in knee- 

 joint, 238, 241 



Helix algira, cells in kidney of, 413 ; 



