90 Ins. 
XIII. INSECTA. 
1711. *Bolle, J. & Richter, M. Studien liber die Ursache der Schlafzucht 
der Seidenraupe. . Zeitschr. Landw. Versuchs. Oesterreich 1903, p. 287. 
Abstract by von Linden, Zool. Zentrlbl. 1903, p. 911. 
1712. Escherich, K. t)ber die Biologie der Ameisen. Bbersicht iiber 
die neueren Arbeiten. Zool. Zentrlbl. 1903, pp. 209-250. ' [ Hymeno - 
ptera .] 
1713. *Gadd, G. Ueber den Bau des Darmkanals bei den Larven von 
Aphrophora spumaria L. Trav. Soc. St. Peters b. xxxii, pp. 65-95, 
i pi. \lIomoptera.~\ 
In Russian. Abstract in German by E. Schultz, Zool. Zentrlbl. 
1903, p. 54. 
1714. Lowe, E. Insects & flowers. Nature lxvii, pp. 368, 369. 
1715. *Stuhlmann, F. tlber den Kafl’eebohrer in Usambara. Ber. Land- 
Forst Deutsch-Ostafrika i, 1902, pp. 154-161, pi. iii. [ Coleoptera.\ 
Abstract by May, Zool. Zentrlbl. 1903, p. 739. 
1716. *Tichomiroff. KUnstliiche Parthenogenese beim Seidenspinner. 
Mt. Seidenzucht Moskau-Landwirt. Ges. i, Heft. 10, 1903, pp. 3-10, pi. i. 
In Russian. Abstract by E. Schultz, Zool. Zentrlbl. 1Q03, p. 344. 
II. BIOLOGY. 
SUBJECT-INDEX. 
1. Anatomy and Physiology. 
N.B. The arrangement in the subsections is of little importance, as each of them 
is not complete in itself. 
a. Morphology. (See also b.) 
Germinal layers in Odonata , Tschuproff (1569). 
Intercalary segments, Yerhoeff (1598). 
Each segment two coalesced somites, protosomite, deutosomite, micro- 
thorax, Walton (1634). 
Morphology of thorax, paired segments, microthorax, coxopleuron, 
katopleuron, anopleuron, Yerhoeff (1594). 
Morphology of Pedioulidce or Pseudorhynohota t Cholodkovsky (310). 
b. General (comprehensive) and External. (See also the 
other subsections for special systems or organs.) 
Elementary methods for histological work, Kellogg (812). 
Structure of the chitin exoskeleton, Biedermann (126). 
External structure and musculature of Japygidca ; the thorax of Insects, 
Yerhoeff (1599). 
Anatomy and Morphology of Copeognatha , i.e. Psocidce , Enderlein (457). 
Internal anatomy of Peranabms scabricollis , Locustidce , Snodgrass 
(1452). 
Thoracic appendages, Termitoxeniidce , Wasmann (1643). 
Prothoracic lateral appendages, Agnus (10). 
Morphology of mouth-parts and legs of Hexapoda and other Arthropod a, 
Borner (158). 
The external structure and legs, merosternum, n. n., Yerhoeff s views, 
Borner (157). 
Mouth-parts of Diptera , Hansen (55). 
