M. Louis Rapkine

Louis J . Gross , Scott M . Duke - Sylvester , and Mark Palmer

Louis A. Duhring, M. D., Pathfinder for Dermatology

Louis A. Duhring, M.D., Pathfinder for Dermatology, by LAWRENCE CHARLES PARISH, Springfield, Illinois, C. C. Thomas, 1967, pp. xviii, 137, illus., $4.40. Duhring was one of the few American physicians of his time to become well known in Europe. His textbook on diseases of the skin (1877) appeared in an Italian edition (1882) and in a French also (1883); a little later there were Russian and Chi...

Louis Pasteur

detail, a valuable contribution and a positive demonstration of his "philology and erudition". The images receive, by comparison, cursory treatment. It is only after repeated perusals that the reader grasps how simple the material really is, basically three male-female pairs dateable to 1539 and their derivatives: the De Negker-Vogtherr set from Strasbourg; the Sabio set from Venice; and the Go...

St. Louis Encephalitis

Transmission of the virus of St. Louis encephalitis to normal chickens by the bite of infected mites (Dermanyssus gallinae) has been demonstrated. Both experimentally infected and naturally infected mites were shown to be capable of transferring the virus of St. Louis encephalitis to chickens by bite. Virus is present in the blood of such chickens in small amounts, so that demonstration of vire...

Louis De Broglie’s experiment

Louis de Broglie’s celebrated hypothesis transfers a problem of representation of optics to the quantum theories. Let us suppose that the fact that originated the problem in optics is the following, “The images obtained by optical instruments are limited by diffraction. Is the diffraction phenomenon exclusively restricting of the information contained in the image or does it have some physical ...