INDEX. 



Mayerondevelopmentof trachea, 354 



on meroistic ova, 709 

 Mechanism of flight. See Flight 

 Mechanism of Fly's foot. i>,/ 

 Median eyes, position <>r. 121 

 Median fissure of cerebion. 453 

 Median ganglia of larva, 93 

 Median segment, 188 

 Median tooth of larva, 41 

 Medulla of nerve ganglia, 66 

 Meigen on abdominal ganglion, 436 

 Meloe, metamorphosis of, 18, 



ovary of, 668 

 Melolontha, dorsal organ of, 255 



dorsal vessel of, 650 



flight of, 385 



muscles of, 219 



post-scutellum of, 1 86 



respiration in, 374 



wing sclerites of 201 

 Membrana basilaris of dioptron, 532 



development of, 552 

 Membrana fenestrata. Sec Mem- 



brana basilaris 

 Membrana tympani. .'v v Tympana, 



and Tympanic membrane 

 Membrane of Krause, 287 

 Membranes of egg, 12 



embryonic, of Insects, 241 

 Mentum, 143 



Menzbier on development of pro- 

 boscis, 322 



on fulcrum, 138 



on head discs, 322 



on head skeleton of larva, 40 

 Meroblastic ova, 708 

 Meroistic ova, 701, 709 

 Mesencephalon, ^44. S>:e Cerebron 

 Mesenchyme, 235, 333. .sv<- 1'ara- 



blast 

 Mescnteron, 13 



general morphology of the, 53 



of eml>ryo, 249 



redevelopment of the, 331, 426, 

 4^7 



.V,r nf.fii Alimentary canal 

 Mesoblast, 13 



of discs of larva, 77 

 origin <il. in embryo, 251 



M'-Miderm 



Mesocercbnm. 445, 453 

 lobes of, 453 

 of A 445 



ion 



Mesoderm, 333, 335 



Mesol'rontal sclente, 115 



Mesogenital somite, 728, 743 



Mesolabrum, i i 5 



Mesophragma, 171, 185 



Mesopleural syndesmosis, 167, 187 



Mesopterygium, 163 



Mesosternum, 171 

 of liombu?, 168 



Mesotboracic muscles, 223 



Mesothorax, i 54 



Metabola, metamorphosis in, 23 



Metacephalic ring, 122 



Metacerebron, 444 

 of Astacus, 447 



Metacranial annuli, 1 18 



Metafurca, 174 



Metagenital somite, 728, 743 



Metalabrum, 1 1 5 



M eta mere, 8 



Metamorphosis, 18, 23 



Metapleuron, 170, 174, 186 



Metapneustic larvce, 28 



Metapterygium, 163, 203 



Metasternum, 174 



Metathorax, 155, 186 



Metencephalon, 444 



Metenteron, 17, 53, 249, 331, 41 i 



Methods of study, 93, 347 



Metschnikoff, or Metschnikow, on 

 causes of immunity from his- 

 tolysis, 310 



on development of Simulia, 254 

 on germinal vesicle, 713 

 on gonads in Cecidomyia larva, 



689 



on intracellular digestion, 297 

 on yelk segmentation in Scor- 

 pions, 2 \'t 



Meyer. See Mayer 



M it ronyle, C>8i 



Micropyle canal, 682 



Mid-gut. See Mcsenteron 



Milne Edwards on germinal vencle, 



711 

 Mirror, 185, 626 



of Cicada, 601, 625 



of Locusta, 60 1 

 Mononematische Stifte, 597 

 Monostichous ocelli, 512 

 Morula, formation of, 239 

 Moseley on sali\.irv glands, 54 



on irai-lu;i-, 356 

 Mother cells, 276 



