CONTENTS. XIU 



a. Insecta. page 



Olfactory Organs of Insects Part 1 33 



Structure of the Stigmata of Insects „ 34 



Wings of the Eymenoptera „ 35 



Development of the Dorsal Vessel of Chironomus .... „ 3.5 



Paltosoma torrentium, a Fly with Dimorphous Female .. „ 36 



Dorsal Blood-vessel of some Fphemerid LarvcB ,, 37 



Comparative A^natomy of the Nervous System, of Insects .. Part 2 234 



Sensory Eerve-e-adings in Skin of Insects ,, 23.5 



Eelation of Devonian Insects to Later and Existing Types „ 236 



Head and Mouth Organs of Diptera „ 236 



Scent-apparat>.i.s of Sphinx ligustri ,, 23S 



" Mouses " of the Larva of the Trichoptera ,, 239 



Detonating Organ of Brachinus crepitans Part 3 i-il 



Glands connected with the Bee's Tongue „ 442 



Alternation of Generation of the Cynipidce „ 443 



Shining Slave-makers (^Polyergus lucidus) 444 



Chorda Supra-spinalis of the Lepidoptera and the Xervous 



System of Caterpillars „ 445 



Beaded, Villi of Lepidoptera-scales „ 445 



Histolysis of the Muscles of the Larva during Post- 

 embryonic Development of the Diptera „ 445 



Axis-cylinder and Peripheral Nerve-cells in relation to 



Se'ose Organs in Insects „ 446 



Insects and the Fertilization of Heterostylous Flowers . . „ 485 



Germinal Layers of the Insecta Part 4 595 



Perfect State of Prosopistoma pwnctifrons „ 596 



Habits of Ants „ 597 



Blood of Insects Part 5 728 



Structure of the Stigmata of Insects „ 729 



Origin of the Tracheal System of Insects ,, 729 



Endocranium and Maxillary Suspensorium of the Bee . . „ 729 



Aquatic LarvcB of Lepidoptera „ 730 



Eelation of Devonian Insects to Later and Existing Types „ 730 



Colour-Sense in Insects, Sfc. Part 6 882 



Beetle with Proboscis like that of Lepidoptera „ 884 



Structure and Hatching of Egg-capsules, 4rc., in Mantis .. „ 884 



;3. Msnriapoda. 



Essays on Myriapods Part 1 37 



Eyes of Myriapods „ 38 



Structure and Affinities of Carboniferous Myriapoda . . Part 4 598 



y. Araclinida. 



Poison-glands of Spiders . . Part 1 39 



Supposed Stridulating-Organs of Steatoda guttata. Wider., 



and Linyphia, tenebricola, Wider ^^ 40 



Glands in the Maxilloe of Tegeneria domestica. Blackball .. „ 41 

 On a Species of Acarus, believed to be Unrecorded. 



(Plate IV.) Part 2 212 



