NO. I THE INSECT HEAD SNODGRASS 6l 



TiEGS, O. W. 



1940. The embryology and affinities of the Symphyla, based on a study 

 of Hanseniclla agilis. Quart. Journ. Micr. Sci., vol. 82, pp. 1-225, 

 41 text figs., 9 pis. 

 1947. The development and affinities of the Pauropoda, based on a study 

 of Pauropiis silvaticus. Quart. Journ. Micr. Sci., vol. 88, pp. 165- 

 336, 22 text figs., 9 pis. 

 TuxEN, S. L. 



1952. Uber das sogenannte tentorium der Proturen. Trans. 9th Internat. 

 Congr. Ent, vol. i, pp. 143-146, 11 figs. 

 Walker, E. M. 



1932. Prognathism and hypognathism in insects. Canadian Ent., vol. 64, 

 pp. 223-229, I pi. 

 Weber, H. 



1952. Morphologic, Histologic und Entwicklungsgeschichte der Articulaten. 

 Fortschr. Zool., N.F. vol. 9, pp. 18-231, 24 figs. 

 Wells, G. P. 



1954. The mechanism of proboscis movements in Arenicola. Quart. Journ. 

 Micr. Sci., vol. 95, pp. 251-270, 6 figs. 

 Weygoldt, p. 



1958. Die Embryonalentwicklung des Amphipoden Gammarus pnlex pulex 



(L). Zool. Jahrb., Anat., vol. 77, pp. Si-iio, 70 figs. 



WiESMANN, R. 



1926. Zur Kenntnis der Anatomic und Entwicklungsgeschichte der Stab- 

 heuschrecke Caransius morosiis Br. III. Entwicklung und Or- 

 ganogenese der Colomblasen, 206 pp., 86 figs. Zool.-vergl. anat. 

 Inst. Univ. Zurich. 

 Wiggles vi'ORTH, V. B. 



1953- The origin of sensory neurones in an insect, Rhodnius proli.vus 

 (Hemiptera). Quart. Journ. Micr. Sci., vol. 94, pp. 93-112, 16 figs. 



1959. The control of growth and form : a study of the epidermal cell in an 



insect. 140 pp., 47 text figs., 8 pis. Ithaca, N. Y. 

 Young, J. H. 



1959. Morphology of the white shrimp Penaeus setiferus (Linnaeus 1758). 

 Bull. 14s, Fish and Wildlife Service, vol. 59, 168 pp., 89 figs. 



