L’Unesco et la doctrine du tourisme culturel

Contribution a l'etude du traitement de la morve experimentale du cobaye par l'anamorve, la sulfadiazine, la penicilline et la Streptomycine

Newton, Stahl, Boerhaave et la doctrine chimique

RICHARD C. DALES, The scientific achievement of the Middle Ages, Philadelphia, University of Pennsylvania Press, 1973, 8vo, pp. ix, 182, illus., $12.50. Professor Dales has selected extracts from primary sources to illustrate early medieval scientific thought, from the twelfth to fourteenth centuries, and presents them with lengthy introductions in the form of an historical narrative. There are...

Sur la Préparation et la Concentration du Sérum antirahique en Iran

La Fièvre Aphteuse et la méthode de préparation du vaccin anti-aphteux

3.6. Ultrastructure De La Spermiogenese Et Du Spermatozoïde Du Genre

This paper describes the ultrastructure of spermiogenesis and the mature spermatozoon of two Dipylidiidae cestodes, Joyeuxiella echinorhynchoides and J. pasqualei. In both species, spermiogenesis follows the type III described by Bâ and Marchand for the cyclophyllideans. Nevertheless, it is interesting to note the presence of striated roots associated with the centrioles. The spermatozoon prese...