472 



.SUBJECT INDEX. 



Mandibles, 40-43, 45, 51, 58, 60 



Mantis., 390 



Manubrium of Mtdiisic, 304-306 



Mastax, 35, 39 



Material agents in reproduction, of 



Insecta, 433-436 

 Maxillse, 41-45 

 Maxillary apparatus, rudimentary, 



67 

 Maxillipeds, 57 

 Mayflies, 41 

 3Mma', 185, 245, 297-310, 349, 350, 



378, 379>402, 411 . 

 3Ieleagrina marc/uritifera, 277 



MeliUm, 433 



artemis, 262 

 Melolontha, 325 

 3Jermis, 39, 428 

 Merostomuta, 50 

 Mesenteries, 33 

 Metastoma, 50, 58, 60 

 3Jetazoci, 9, 30, 32, 221, 245 

 Micrococci, 27 

 Microspectroscope, the, 153, 155, 157, 



169, 170-175. 215, 218 

 Mdlejjora rainosa, 253 

 Millipedes, 41 

 Milnesium, 439 

 Mimicry, 82 

 3Io^andrina, 409 

 Molar motion, 2 

 31ollusca, 5, 9, 67, 105, 124, 125, 141, 



167, 201, 233, 236, 244, 276, 278, 



282, 339, 341, 342, 365, 367, 397, 



402, 448 

 Mollusca, glycogenic function in, 115 



salivary secretions in, 109 

 Monads, 26, 29, 347, 34S, 376, 406 

 31onas vid(j(iris, 27 

 31oneru, 404 

 JJonostomum , 420 

 3Ionticidaria, 409 

 31onti2mra foliosii, 253 

 Mori:)hological units, 2 

 Morphology, i 

 Morula;, 37, 408, 410, 411, 417, 429, 



448 

 Mucous glands, 245, 284 

 JhtrcJii-soiiid, 450 



Murexide, 247, 248, 254, 259, 270, 274 

 Mtmca, 326, 390 

 Muscular fibres, 375, 387-389, 393 



pharynx, 35, 40 

 Musical organs of insects, 433-436 

 3Iya, 67-69, 104, 105, 283, 286, 287, 



340 

 Myyale, 48 

 Myohsematin, 219, 222, 231, 238, 284 



31jirianida, 426 



31jirif(poda, 40, 41, 46, 123, 127, 180, 

 '192, 228, 260, 324, 355, 363, 389, 



430 

 JJyrmecoles, 264 



3Iijrmeleonida', 359 



31ytilus, 67, 104, 105, 141, 234, 237, 



238, 398 

 31yzostomatus, 37, 422 



Naix, 79, 424 



Naked-eyed Medusa; 298-308 



Natica, 450 



Natural selection, 250, 288, 391 



Nautilus, 74, 202, 367, 370, 451 



Nectocalyx of 3Iedus(r, 298, 300, 302, 



304-306, 379 

 ^eluatoscohces, 38, 39, 227, 323, 354, 



389, 426 

 Nematotdea , 38, 39, 86, 127, 227, 259, 



323. 354, 389, 426, 428 

 Nematorhyncka, 38, 39 

 Xemcdus ventricosus, 437 

 Nemertes, 418, 419 

 Nephelis, 131, 146 

 Nephridia, 204, 243, 256, 257, 260, 



283-286 

 Nephrops, 232 

 Nepthys, 323 

 Nereis, 38, 91, 153, 226 

 Dumerillii, 152 

 regia, 322 

 Nerve-cells, 293, 299, 303 



322 

 Nerve-centres, 295, 310, 319 

 Nerve-fibres, 293, 294, 299, 



353 

 Nerve-plexuses, 299, 313, 317, 319, 



327> 351 

 Nerve-poisons, 309 

 Nerve-rings, 3", 316, 318, 321, 323, 



342 

 Nerve-tracts, 296, 302 

 Nerves, inhibitory, 294 



motor, 294 



of Homarus, composition of, 



338 



secretory, 294 

 sensory, 294 



transmission of motor excita- 

 tion in, 331-336 

 vascular, 294 

 Nervous systems, 292-344 

 Neuro-muscular elements, 297, 299, 



302, 304, 308 

 Netu'optera, 45, 327, 357, 359, 394, 



433, 438 

 Nirmidte, 359 



313. 



322, 





