520 



INDEX. 



Louis and Chomel on matter distending 



intestinal glands, 378 

 Lymphatic glands, structure of, 439-444 



Macroura (Crustacea), organs of genera- 

 tion in, 431, 433 



Magnet formed by electricity of fish, 342 



Malapterurus, electric batteries in, 293, 

 294, 302 



Male and female figures, how they differ 

 in harmonic ratio, D. R. Hay's views, 

 217, 218 



Malpighion secreting glands being formed 

 of tubes with blind extremities, 412 



Mammary gland of bitch, 416 



Mathematical modes of investigation in 

 the determination of organic forms, 

 two lectures on the employment of, 

 205-219 ; principles on which shells 

 are constructed, 209-211 



Matteucci on the dependence of the 

 electromotor energy of electric appa- 

 ratus in fishes on the nervous centre, 

 300 ; electric properties in muscle 

 due to its own texture and not to 

 nerves, 323 



Mechanism of knee-joint, Goodsir's me- 

 moir on, 231-245 



Meckel's cartilage, 187-190 



Membrane and gland, electric pheno- 

 mena in connection with, 319-322 



Mercury, effects of, on teeth, 38 



Metasomatomic openings defined, 85 



Meyer, on the peculiar curvature of the 

 inner condyle of the. femur, 22 0-22 4, 

 232 ; his Mechanics of the Human 

 Skeleton referred to, 220, 232-234 



Microcosm, electrical disturbances in, 

 represented by similar but grander 

 phenomena in macrocosm, 338 



Milk incisives, growth of, 36 



Milk-teeth, production of, 48, 50, 55 



Modiola vulgaris, liver of, 414 



Molars in man and elephant, their 

 growth, 41 ; the anterior permanent 

 molar the most remarkable tooth in 

 man, 45 



Mollusca, Moseley on the logarithmic 

 curve in the shells of, 209-211 ; eye 

 in, how acted on, 280 



Monitor-lizards, "palatines" in, 160 



Morphological constitution of the skele- 

 ton of the vertebrate head, 88-197 



Moseley (Professor) on the geometrical 

 formation of shells, 209-211 



Mouth, position of, fundamental differ- 

 ences between morphological relations 

 of annulose and vertebrate nervous 

 systems, 80, 82 



Movement (primary) or " along the 

 thread," what it means, 248 ; (second- 

 ary) or " across the thread," 248 



Mucous membrane, electric relations of, 

 320, 322 



Miiller on cyclostomous fishes, 174 ; on 

 absorption, 397 ; on secreting glands, 

 412 



Miillerian filaments of the retina, 269 ; 

 not nervous structures, 270 



Muscle, electric properties of, 322-331 



Musket-bullets and other foreign bodies, 

 how inclosed in tusks of the elephant, 

 56-65 



Musical harmony in proportions of human 

 frame, D. R. Hay's theory, 216-219 



Myome, myotome, terms of Goodsir's, 

 86 



Nautilus, the form of the shell in, 211 



Nares, relative position of external and 

 internal, 165 



Nasal chamber in bird, 169 ; fosste, 

 their constitution, 165-173 ; passage 

 of cyclostomous fishes, 173, 175 



Nasmyth (A.) on resemblance of ossified 

 pulp to diseased ivory, 62 



" Negative" movement in joints, 249 



Nereis, biliary apparatus of, 415 



Nerves of batteries in electrical fishes, 

 289-291 ; in gymnotus, 298 



Nerve-filament, the doctrine of Du Bois 

 Reymond on, 276 



Nerve, electric properties of, 331 



Nervous centre in electrical fishes, 289 ; 

 force and electricity equivalent, 331 ; 

 system in the annulose and vertebrate 

 types, morphological relations of, 

 78-87 



Neurome, neurotome, terms of Goodsir's, 

 86 



Neuronaia monroi, 493 ; John Good- 

 sir's account of, 495-501 



Neuropod, Goodsir's term for an annu- 

 lose animal, 85 



Newton from the geometric forms made 

 out the law of the force, 212 



Nobili on electric current in nerve and 

 muscle of the frog, 323, 328 



Noise, sound heard merely as noise in 

 vestibule of ear, 287 



Nostrils of chelonian more of the or- 

 nithic than mammalian conformation, 

 171 ; of crocodiles, peculiar position 

 of, 118, 119 



Nucleated cell, secretion a function of, 

 413-416, 428 



Nutritive centres of textures permanent, 

 390 ; of organs embryonic, 390 



