75S 



IXDE.X. 



Fulcrum of imago, 137 



of larva, 44 



See Pharynx 

 Furca, 14} 



muscles of, 392 



Furlonge on movements of tracheal 

 vessels, 383 



GALE A, 133, 134, 150, 152 



in Cicindela, 133 

 Gammarus, ventral appendages of, 



129 



Ganglia, cells of. Sec Nerve-cells 

 development of, 494 

 intestinal, of larva, 59 

 number in Diptera, 64 

 optic, 469 

 pharyngeal, 93 

 primitive, 64 

 sensory, 443 

 thoracic, 435 



Ganglio-genetic cells, 480 

 Ganglion en coin, 471 



a cotes de melon, 72 

 Ganin on development, of Gonads, 



686 



of imaginal discs, 74, 76 

 of integument of abdomen, 



3=3 



of mesoblast, 335 

 Ganin's ring, 58, 427 

 Gases, partial pressure of, 382 

 Gaskell, hypothesis of, 99, 1 10, 441 

 Gastric glands, 54 

 Gastrula stage, 240 

 of Amphioxus, 247 

 of Echinoderms, 247 

 Gastrulation, 240 

 Gegenbauer on tracheal gills, 356 



on wings, 161 



Generative aperture, position of, 727 

 Generative armature of male and 



female compared, 726 

 ( lenerativc organs, 658 

 bibliography of, 658 

 See ti/st> Internal and External 



generative organs 

 Genital. S,-c >!/> Gen-Talive 

 Genital rortl, '/S;, 704 

 < .1'uital fossa, C>75, 677 

 Genital spine, < 

 Germ, 12 



relation to vitelltis, 236, 707 



Germ gland. Sec Germogen 

 Germ ova, 675 



development of, 718, 720 

 Germinal spot, 707 

 Germinal vesicle, 707 

 Germogen, 709, 721 

 Gerstfeldt on fulcrum, 138 

 (Jills. Sec Tracheal gills 

 Gilson on spermatogenesis, 693, 696 

 Glands of fly's foot, 198 

 Glands, wax, 279, 352, 360 

 Gleichen on halter, 615 



on proboscis, 398 

 Glomeruli of olfactory lobe, 468 

 Glosso-olfactory bundle, 468 

 Glosso-pharyngeal apophysis, 138, 



140 



Glycerine, mounting objects in, 214 

 Glycogen in Malpighian tubes, 416 

 Gnat. See Culex 

 Gonads, 659 



origin of, 684 



in Aphides, 248, 251 

 in Cecidomyia larva, 689 

 Gonapophysis, 659, 728 



anterior, 732 



posterior, 733 

 Gosch on Latreille's segment, 189 



on spiracles, 181 

 Gottsche on mosaic vision, 555 

 Graber on antenna', 592 



on chordotonal organs, 595 



on development of fat bodies, 



236 

 head discs, 261, 300 



on dorsal vessel, 644 



on hearing in Insects, 498 



on Malpighian tubes, 414 



on nymph, 300 



on ovary, 671 



on pericardial septum, 646, 



on ptycoblasts, 243 



on segmentation cavity, 252 



on special nerve organs, 609 



on thorax, i'>; 



on tracheal gills, 1 60 



on wing org.ins, 620 

 Graber, organ oi, 601 

 ( iracilis muscle. 22 i 

 Graff on Khabdoru'lia, 722 

 Graham on transpiration, 3X2 

 ( H-.mule cells, 273, 297 

 Gray cortex of nerve centres. 67 



<>f thoracic ganglion, 438 



