344 



INDEX OF SUBJECTS 



Kinetochromidia, 214. 

 Kinoplasm, 214. 



Lamprey, 100, 209. 



Larva, 23. 



Lecithin, 8, 12. 



Lejpas, 172, 225. 



Lepidoptera, 118. 



Lepidosteus, 32, 33, 101. 



Leptinotarsa, 37-41, 111, 125-129, 



138-139. 

 Leptotene, 251, 252. 

 Life cycles, 22^. 

 Linin, 5, 7. 



Linked characters, 307. 

 Locust, 23. 

 Lophius, 102. 

 LygoBus, 259. 

 Lymncea, 192. 



Macrogamete, 27. 



Male, 18. 



Man, chromosomes of, 272 ff. ; 



hermaphroditism in, 194. 

 Maturation, 41-47, 129, 256 #. 

 Medusa, 23. 

 Mesostoma, 204. 

 Metabolism, and sex, 275 ; and 



Keimbahn-determinants, 228. 

 Metagenesis, 23. 

 Metanucleolus, 183, 215. 

 Metaplasm, 5, 7, 8. 

 Metaphase, 15, 16. 

 Metazoa, 1, 18. 

 Miastor, 51-68, 107, 217 /., 235, 



293-294. 

 Microgamete, 27. 

 Microsome, 6. 



Middle piece, of sperm, 21, 216. 

 Migration, of germ cells, 31-34, 



101-102, 116, 226. 

 Mitochondria, 5, 13, 39, 40, 226/., 



275-289 ; methods, 282-283 ; 



Ascaris, 284; chick, 278; di^ii- 



sion of, 281, 284 ; function of. 



286 /. ; in living cells, 280, 281 ; 



in plants, 277, 280 ; reduction of, 



285; and sex, 285. 

 Mitosis, 13, 14-16. 

 Mitrocoma, 183. 

 Mixochromosomes, 251. 

 Moina, 163. 

 Mollusk, 185, 191. 

 Monad, chromosome, 45, 46. 

 Moniezia, 136, 297. 

 Monoecious, 18, 191. 

 Monospermy, 48. 

 Mosaic development, 233. 

 Moulting, 23. 

 Musca, 107. 

 Myofibril, 280. 

 Myxine, 209. 

 Myzostoma, 37, 185, 193. 



Nahrzellenkem, 170. 



Nebenkem, 203, 221, 285. 



Nebennucleolus, 214. 



Nematodes, chromosomes of, 267 ff. 



Nepa, 137. 



Neratina, 186, 225. 



Netzapparat, 103, 104. 



Neurofibril, 280. 



Nuclear sap, 6. 



Nucleic acid, 11. 



Nuclein, 11. 



Nucleolo of Silvestri, 145 ff. 



Nucleolus, 5, 6, 13, 167, 213/. 



Nucleoprotein, 8, 11. 



Nucleus, 3, 13-16. 



Nurse cells, 35-36, 53, 119-121, 150, 



151, 201, 202. 

 Nutritive substances, 225 ff. 



(Enothera, 160. 

 Oncopeltus, 261, 262. 

 Oocyte, 38, 39, 40-41. 

 Oogenesis, 42, 256 /. 

 Oopfhora, 145, 146. 

 Ophryotrocha, 37. 

 Opossum, 288. 



