BIOLOGY. 
Ins. 91 
Mouth-parts of Cicada and Hcmiptcra , Meek (990). 
“ Teeth ” of Muscidce , Harriss (672). 
Trochanter and praefemur, Verhoeff (1601). 
Morphology of leg, No. 3, Verhoeff (1595). y 
Morphology of the legs, Nos. 4 & 5, Yerhoeff (1596). 
Structure and homology of trochanter, GrunbeRg (650). 
Morphology of terminal segments, cerci, Verhoeff (1597). 
Structure of thorax in Odonata, Needham & Anthony (1061). 
Structure of abdomen, 9 Diptera , Borner (160). 
The cerci of Odonata , HandlIrsch (669). 
Structure of elytra, Coleoptera , Kolbe (863). 
Neck-membrane in Lathridius , Gabriel (585). 
Scent-organs, male Lepidoptera , Illig (752). 
Anatomy of Embia , MelAnder (993). 
Omosita colon , larva and pupa, anatomy, Eichelbaum (444). 
Scolytidce larvae, anatomy, Eichelbaum (443). 
External structure of Lepidoptera , Rothschild & Jordan (1291). 
External structure larva and pupa of Steganoptycha pyricolana y 
Sanderson (1316). 
Anatomy of larva of Ephydra riparia , TraoXrdh (1641). 
Histology and anatomy of Corethra and Culex, larva, Metalnikoff (1006). 
External structure, gills, etc. of Ithytrichia larva, Lauterborn & 
Rimsky-Korsakow (917). 
c. Nervous System, Sense-Organs. (For Senses, Psychology etc., 
see p. 93.) 
Nervous system during metamorphosis, Henneguy (692). 
Leydig’s cord, Lepidoptera , Hirschler (709). 
Ganglia of Odonata , Calvert (263). 
Abdominal ganglia of Coleoptera , Peyerimhoff (1124). 
Sense-organs in the antennae of the sexes of Lep. and Hym ., Schenk 
(1330). 
Structure of eyes, Machilis , Seaton (1378). 
Double eyes, Blepharoceridce , Kellogg (808). 
Auditory apparatus, Grylliis , Herbig (695). 
New organ, otolith? Phylloxera , Stauffacher (1466). 
d. Muscular System. 
Musculature of legs, Verhoeff (1596). 
e. Nutrition (incl. Circulatory and Respiratory Organs, Glands, 
Excretion). See also g. 
Mesenteron Bombus , secretion, Semichon (1399). 
Alimentary system of Anopheles, Nuttall & Shipley (1081). 
Digestive system, Arctia caja , Bordas (153). 
Alimentary canal, Apis , Abonyi .(5). — Alimentary canal, Aphrophora , 
Gadd (1713). — Alimentary canal, Silphidce , Bordas (151). 
Posterior intestine, Silpha , anatomy and histology, Bordas (154). 
Digestive processes ana structures in the wax-moth Galleria melonella , 
Metalnikoff (1004). 
Respiration and respiratory structures of Donacia larva, Macgillivray 
(960). 
Palmen’s organ, Ephemeridce , Gross (641). 
Tracheal gills, Needham (1059). 
Tracheal gills on legs of Perlidce, Lauterborn (916). 
Anal gills, Trichoptera larvae, Thienemann (1529). — Gills, Trich ., 
Lauterborn (917). 
