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In this issue there are two detailed, comprehensive, well illustrated articles on spirochetes, one on the varieties usually regarded as pathogenic, the other on the saprophytic species. Each comprises about fifty pages. In a treatise already swollen to quite unmanageable financial dimensions the assignment of so much space to saprophytic spirochetes may be questioned, interesting as these organisms may be to the pure biologist. We have previously noted a similar disregard for proportion in other issues and are forced to believe that editorial pruning and selection should have been more rigorously exercised. Ruge's article on malaria is clearly and systematically written with much display of boldface type and ten fine plates. The discussion of the part played by various species of Anopheles in malaria transmission in different localities will seem quite inadequate to many readers. There is no mention of P. F. Russell's method of identifying the several kinds of
Handbuch der pathogenen Mikroorganismen.. JAMA. 1930;95(11):819. doi:10.1001/jama.1930.02720110055032