PLATE 17. Bacterium typhi. Eberth. Gaffky. (Typhoid Bacillus.) I. Gelatin plate, eight days at 22°. colony. Compare also Plate 19, VI, VII. 90. Superficial II. Gelatin plate, eight days at 22°. X 150. Superficial colony. nies. Natural size. III. Gelatin plate, four days at 22°. VI. Agar plate, four days at 20°. X 60. Superficial colony. VII. Potato culture, five days at 22°. VIII. Microscopic preparation. Pure culture from agar plate. 1000. IX. Microscopic preparation. Copied after Fränkel and Pfeiffer. kunde," Plate 54, III. X. Microscopic preparation. Bacilli with flagella. "Atlas der Bakterien Long threads thickly beset with flagella. X 1500. Stained by Löffler's method. XI. Microscopic preparation of Bacterium typhi murium Löffler, with flagella and capsule. X 1500. Stained by Löffler's method. Bacterium coli (Escherich). L. and N. I. Gelatin stab culture, ten days at 22°. II. Gelatin streak culture, four days at 22°. In nature is transparent, resembling mother-of-pearl in iridescence. Compare also Plate 16, vi. III. Agar streak culture, four days at 22°. Compare also Plate 16, v. IV. Agar stab culture, two days at 22°. Stab canal. growth. Surface VI. Agar plate, four days at 22°. X 60. Deep colonies. Compare also Plate 14, VI. VII. Agar plate, four days at 22°. X 60. Part of a superficial colony. May also occasionally present forms like the bacillus acidi lactici. Compare Plate 12, Iv; Plate 14, vi; Plate 17, vi. VIII. Agar plate, three days at 22°. paler or more deeply colored. Natural size. 22°. May also be X. Bacteria with long flagella of Bacterium brassica acidæ. 1000. Stained according to Löffler. XI. Bacterium of pigeon diphtheria surrounded by flagella. X 1000. Stained according to Löffler. XII. Bacteria with one flagellum, rarely two flagella, of Bact. coli unipolaris. X 1000. Stained according to Löffler. X. XI. XII. |