BIOLOGY. 
Ins. 81 
Wing of Coleoptera , Kempers (674). 
Wing of Omma , Peyerimhoff (1019). 
Suture of elytra, Coleoptera, Alluaud (15). 
Nervures of Lepidopterous wing, tracheal system of in pupa, Enderlein 
(399). 
Morphology of leg, Borner (137). 
Legs of Diptera , Wesche (1487). 
Anatomy of Dolichopoda , Monti (924). 
Anatomy of Trichopsocus , Ribaga (1150). 
Anatomy of Actaletes, Willem (1495). 
Anatomy of Molanna (Trichoptera) larva, Betten (102). 
Internal anatomy of Sisyra larva, Anthony (29 a). 
External structure of Passalus , Landacre (769). 
External structure of Ceratopogon , Colledge (275). 
Cocoon-cutter in Antheroea, Dodd, Entomologist 1902, p. 16. 
Protrusible organ in some male Lepidoptera , Lister (824). 
Tuft, £, of Noctuidce , Lister, Ent. Rec. xiv, p. 340. 
Structure of scales of various butterflies, Sykes (1350). 
c. Nervous System, Sense-Organs. (For Senses, Psychology etc., 
see p. 83.) 
Eye of Arthropoda, specially Crustacea , Kunstler & Gineste (746). 
Development of stemmata Vespa , Zavrel (1509). 
Sense-organs on pupa of Lepidoptera , vox Linden (819). 
Terminations of motor nerves, Aggazzotti (6). 
Morphology of infraoesophageal ganglion, Yerhoeff (1408). 
Antennal organs Collembola , see b. 
Embryology of nervous system Musddce, Escherich (405). 
Development of nervous system Lucilia , Escherich (406). 
d. Muscular System. Vacant. (Muscle in metamorphosis, see g.) 
e. Nutrition (inch Circulatory and Respiratory Organs, Glands, 
Excretion). See also g. 
Alimentary canal of Xylocopa, Bugnion (179). 
Alimentary canal of Scolytidce , Sedlaczek (1241). 
Alimentary canal of larva of Lep ., Simpson (1271). 
Regenerating crypts of mesenteron of Hydrophilus, Deegener (311). 
Alimentary canal and malpighian tubes of Acherontia pupa, Bordas 
(132). 
Alimentary canal and malpighian tubes Lepidoptera , Bordas (131). 
Malpighian tubes, Gryllidce , histology, Bordas (130). 
Malpighian tubes and receptacle, Gryllidce , Bordas (129). 
Structure of gizzard, Coleoptera , Bordas (128). 
Respiration, Hydroptilidce larvae, Richters (1152). 
Tracheal system, Simidium , larva, pupa, imago, Taylor (1359). 
Dorsal vessel, Bergh (89). 
Excretory organs in Coleoptera , Holmgren (614). 
Mandibular and labial glands, Cossus ligniperda larva, Bordas (133). 
Salivary glands of Periplaneta , Lebedeff (786). 
Spinning glands of Embiidce , Melander (886). 
Foam-glands of Aphrophora , Porta (1083). 
New dermal gland, Betten (102). 
Exuvial glands and setigerous cells in ecdysis, Tower (1380). 
Exuvial glands and hair-cells distinguished, Verson (1411). 
Fluid-ejecting apparatus, stink-glands in Orthoptera , Vosseler (1439). 
Dorsal glands of Hemiptera larva, Gulde (573). 
1902. [Vol. xxxix.] E 6 
