Studies in the Bacteriology Author:Edward Klein General Books publication date: 2009 Original publication date: 1906 Original Publisher: Macmillan and co., limited Description: Each plate accompanied by guard-sheet with descriptive letterpress. Subjects: Plague Yersinia pestis Medical / Infectious Diseases Medical / Epidemiology Medical / History Medical / Microbiology S... more »cience / Life Sciences / Biology / Microbiology Notes: This is a black and white OCR reprint of the original. It has no illustrations and there may be typos or missing text. When you buy the General Books edition of this book you get free trial access to Million-Books.com where you can select from more than a million books for free. Excerpt: Fig. 3. Stained film of the juice of a bubo -- fatal bubonic plague of an Indian native, s. s. City of Perth. x 1000. Fig. 4. Stained film of spleen juice of a rat, dead of natural plague, Cardiff, x 1000. ... Fig. :J. N ' ; - V . ' . " .' ' - - .-' Fio. 4. when examined by film specimens, showed each field of the microscope literally crowded with the bacilli. While, then, in the acute cases, the microscopic examination of the bubo material enables one to make the preliminary diagnosis " plague most probable," it is not so in the chronic cases, i. e. in pestis minor, or in ambulating plague, when the buboes suppurate and become converted into open discharging sores, for here the material in microscopic specimens may, and generally does, show a variety of microbes, (a) Foremost among these one finds cocci, which by culture are shown to be either Staphylo- coccus albus or aureus ; they are Gram-positive ; (6) next one finds streptococci; they are Gram-positive; these are less common; (c) here and there a diphtheroid bacillus, Gram-positive, which by culture is shown to belong to the xerosis group; (d) bacilli with round ends, and showing on staining more or less distinct bipolar character ; these may be B. proteus, B. coli, or B. pestis, all being Gram-negative. The culture test, howe...« less