INDEX 



471 



Invertebrates, 143, 147, 213, 214, 225, 



229, 244, 265, 270, 273 

 Ions, II, 234 

 Iris diaphragm, 226, 1:2.% 

 Irritability, 3, 4, 21, di, 67, 92, 209 

 Irritability, amoeba, 63 

 Irritability, paramcEcium, 67 

 Isogamy, 251 

 Isolecithal eggs, 266 

 Isotonic solutions, T^d 



Jejunum, 159, 160 



Jelly fish, loi, 102, 193, 22g, 261 



Jenner, 85 



Kangaroo, 120, 121 



Katydids, 356 



Kidney, 137, 186, 187, 188, i8g, 190, 



245 

 Kinetic energy, 17, 18, 41, 45, 366 

 King crab, 402, 403 

 Koch, 424 

 Krakatoa, 416 



Lactase, 164 



Lacteals, 177 



Lactic acid, 242 



Lacuna, 148 



Lamarck, 389-393. 423 



Lamella, 148 



Lamprey eel, iiy, 118 



Lancet, 114, 7/5 



Larynx, 170, 172, 356 



Law, 430 



Leech, 109, no 



Leeuwenhoek, 422 



Lemur, 722 



Lemuridx, 122 



Lens, 225, 226, 227 



Lens ligament, 226, 227 



Lepidoptera, 359, ^60 



Leucocytes, 174 



Liberalism, 437 



Lichens, 73 



Life, 2, 3, 16, 18, 26, 418 



Light gradients, 379 



Light receptors, 225 



Light sensitive substances, 225 



Limb duplicity, 286 



Limestones, 401 



Linin, jo 



Linkage, 332, 333 



Linnaeus, 423 



Lipase, 157, 163, 164 



Lister, 424 



Liver, 159, 760, 165, 224 



Liver fluke, 104, 106 



Lizards, 119, 179 



Lobster, 112, 143, 755, 767, 77^, 18^, 



230 

 Lobster, balancing organ, 230 

 Lobster, green gland, 18^ 

 Lobster, heart, 77*^ 

 Lock jaw, 82 

 Luminescence, 356 

 Lung buds, 274 

 Lungs, 170, 171, 772 

 Lymph, 174, 177 



Macronucleus, 6^, 66, 6g, 70, 71 



Macrospore, 257 



Madagascar, 415 



Malaria, 74, 75, 76, 98, 99 



Malarial parasite, 74, g8 



Male, 193 



Malleus, 231 



Malpighi, 422 



Malpighian tubules, 18^ 



Maltase, 164 



Mammse, 119 



Mammalia, 119, 125, 401 



Mammalian heart, 409 



Mammals, 64, 120, 122, 145, 170, 187, 



190, 196, 198, 208, 228, 237, 297 

 Mammary glands, 196, 207-208 

 Man. See Human. 

 Manatee, 123 

 Mantle, 109, no 

 Marmosets, 122 

 Marsupialia, 72/ 

 Marsupials, 120, 727 

 Marsupium, 120, 727 

 Mastigophora, 55, 88, 8g, 97, g8 

 Matrix, 8g, 148 

 Maturation, 312-317. See also Oogenesis 



and Spermatogenesis. 



