INDEX. 
Great apodeme of penis, 743 
Great cephalic disc. See Head disc 
Great entopleuron, 172 
Great hooks of larva, 40, 45 
Great rods of compound eye, 516 
axial threads of, 525 
functions of, 559 
morphology of, 523 
post-mortem changes in, 525, 
529 
structure of, 524, 529 
supposed innervation of, 521, 
522 
theory of, 530 
Great thoracic muscles, 223 
action of, 22 
Grenacher on compound eye, 519 
on cornea of compound eye, 528 
on eye of Limulus, 547 
on innervation of compound eye, 
521 
on membrana basilaris, 532 
on ocelli, 516 
on retinal end-organs, 520 
on vision in Arthropods, 555 
Griffith on Malpighian tubes, 415 
Gryllotalpa, development of, 233 
Gryllus, ovary of, 669 
supra-tympanic organ of, 602 
HAARSTIFTE, 596 
Habits of Blow-fly, 5 
Haeckel on the position of the 
Diptera, 26 
Heemal surface, 8 
Hematoxylin solution, 96 
Halliburton on Pettenkofer’s reac- 
tion, 415 
Halter, 25, 603 
basal organs of, 611 
canals of, 606 
capitellum of, 607 
chordotonal organs of, 607, 
613 
comparison of, with semicircular 
canals, 616 
cupola of, 605 
development of, 612 
effect of sound vibrations on, 
618 
experiments on, 616 
functions of, 614, 618 
ganglia of, 435 
759 
Halter, general description of, 604 
hearing, relation to, 618 
homologies of, 188 
morphology of, 188, 603 
movements of, 604 
nerves to, 217, 229, 605 
of Leptis, 606 
of Tipula, 606 
removal of, 377, 617 
rudiments of wing in, 607 
scabellum of, 604 
scapal organs of, 611 
septum of, 608, 609 
special end-organs of, 609 
Hammond on genital organs of 
Tipula, 742 
on head of Tipula, 28 
on thoracic muscles, 223 
Hamulus, 202 
Harvey on metamorphosis, 19, 24 
Hatschek on nerve ganglia, 481 
Hauser on functions of antenne, 592 
Haustellum, 135 
muscles of, 392 
Head, axis of, 124 
of larva, 33, 37 
Head capsule, 119 
bibliography of, 119 
contents of, 215 
development of, 113 
general morphology of, 106, 113 
muscles of, 219 
nomenclature of, 107 
of immature imago, 124 
posterior surface of, 122 
segmentation of, 114 
Head, development of, in nymph, 320 
Head discs in larva, 77 
invagination of, in embryo, 259 
Headless larvae, 27 
Hearing, a warning sense, 497 
centres of, 474 
in Blatta, 497 
organs of. See Auditory organs 
Heart. See Dorsal vessel 
Hearts, accessory, 636 
Heathcote on Julus, 157 
Heber, 363 
Heiden on median element in 
ganglia, 481 
Hemiptera, head of, 115 
protandry in, 723 
| Hemispheres of imago, 453 
of larva, 68, 483 
~ 
