512 



INDEX 



of man, 364; of offensive devices, 375; 



of turbellarian worm, 359. 

 Intercalated disks, 96. 

 Intermediate granule, 83. 

 Intermediate membrane, 83. 

 Intermediate substances or tissues, 200. 

 Intestine, of pigeon, 296. 

 Intima, 160. 

 Invagination, 50; relation to circulation, 143- 



148. 



Iris, 226. 

 Isotropic substance, 83-90. 



Julus, scent gland, 408. 



Karyokinesis, 23. 

 Karyoplasm, 6. 

 Karyosome, 8. 



Kidney, 341 ; of Iguana, 350. 

 Krause's membrane, 83. 



Labium vestibularis, 223. 



Lacunae, of blood, 149; bone, 71. 



Lamella, of byssus gland, 412. 



Lamina, of byssus gland, 412. 



Lamina spiralis, 222. 



Lampyris, light tissue, 131. 



Lax connective tissue, 62. 



Leidig's cell, 57. 



Leidig's cells, connective tissues, 327. 



Lens, embryonic eye, 226; of light organs, 127. 



Lepus, embryonic eye, 254; neuroglia, 197; 

 tear gland nerves, 195. 



Ligamentum nuchae, 64. 



Light tissues, 122; of Abraliopsis, 128; in 

 Arthropoda, 131; of Calliteuthes, 127; 

 Chauliodus, 137; in Ccelenterata, 126; in 

 Crustaceans, 129; in Ctenophores, 126; 

 Gigantactus, 137; of Lampyris, 131; in 

 Mottusks, 126; in Noctiluca, 125; of 

 Photinus, 133; development of, in Po- 

 richthys, 138-139; of Pyrophorus, 132-133; 

 quality of light, 124; of Spinax, 135; in 

 tunicates, 133; in worms, 129. 



Limulus, eye, 239. 



Linin, 7. 



Liver, of Cryptobranchus, 302. 



Loligo, bilateral symmetry, 22; cartilage, 68- 

 69; chromatophores, 275-278; eye of, 249; 

 ink-pigment tissues, 272; muscles in arm, 

 79-80; muscle tissue, 99; nerve cell, 180; 

 shell, 68; static cell, an. 



Lubrication, 387; of eyes, 396; of joints. 

 398; list of examples, 388; by an oil, 

 388; by mucin, 387; by other serous 

 media, 388. 



Lucif erase, 122. 



Lumbricus, calcium carbonate glands, 293; 

 chloragogenic, cells, 355; cuticle, 361; 

 gizzard, 287 ; mucous tissue, 391 ; ne- 

 phridia, 346-348; nephrostome, 353; nida- 

 mental tissue, 482; tactile nerve-endings, 



3OI. 



Lungs, 331. 



Lycosa, poison gland, 381. 

 Lymphatic nodules, 169. 

 Lymph glands, 168. 



Macropodus, gas tissues, 337. 



Macula acustica, 214. 



Magnolia (multipolar mitosis), 26; nurse cells, 



43- 



Malapterurus, electric tissue, 120. 



Male form of cell, 418. 



Malpighian tubule, of insect, 344. 



Mammal, adrenal gland, 315. 



Mammary glands, of cat, 499. 



Mantle fibrils, 25. 



Marrow, 172. 



Masticatory tissues, 281; of Acanthias, 291; 

 of Apis, 291; of Passer, 288; of Helix, 

 290; of Lumbricus, 287; of Seserinus, 

 288-289. 



Maturation of reproductive cells, general ac- 

 count, 425; in female, 453; in male, 436; 

 in a parthenogenetic form, 474. 



Media, 160. 



Mesoderm, 21. 



Mesodon, digestive cells, 299; mucous cell, 



39- 



Melanoblasts, 271. 



Membrane, nuclear, 7. 



Membrane vestibularis, 222. 



Mephitis, odorous gland, 401. 



Metaphase, 25. 



Metopus, pigment of, 270, 273. 



Microcentrum, auditory tissues, 317. 



Microchromosome, 443. 



Micropyle, of ovum, 467. 



Microsomes, 3, 8. 



Middle piece, of spermatozoon, 427. 



Mitosis, 23; multipolar, 26; without centro- 

 somes, 26; of pigment cells, 272. 



Mochlonyx, auditory organ, 217. 



Mole, adrenal gland, 315. 



Monads, monad chromosomes, 462. 



Monoecious, 419. 



Mormyrus, electric tissues, 117. 



Motion, tissues of, 76. 



Mucin, 387. 



Mucous tissue, of alligator, 392; of Am- 

 phibia, 393; of clam, 389; of earthworm, 

 391; of mammals, 393; of snail, 390. 



Mus, macula acustica, 214; tear gland, 397. 



Muscle, of Allolobophora, 99; of Ascaris, 98; 

 bands or stripes, 83; of bladder of Bos, 

 100; cardiac, 92; cell of Cercaria, 102; 

 of Cerebratulus, 98; contraction, 85; de- 

 velopment of smooth, 101 ; of Euspongia, 

 97; of Loligo, 99; of Plecypoda, 99; 

 smooth, 97 ; of Venus, 100. 



Muscle cell, 76; of Leucosolenia, ioa. 



Muscle cells, shape, 78-79. 



Muscle fibril, 76. 



Muscles, mechanics of, 79. 



Mya, mucous gland, 389. 



Myelin, 189. 



Myelocytes, 173. 



