PLATE 19. Bacterium coli (Escherich). L. and N. I. Gelatin plate, eight days at 22°. × 60. Cultivated from pus. Deep colonies of abnormal form. II. Gelatin plate, four days at 22°. Natural size. III. Gelatin plate, one day at 22°. X 90. Superficial colony. Compare also Plate 14, VIII; Plate 16, VIII. IV. Gelatin plate, four days at 22°. × 60. Superficial colony. Compare also Plate 16, Ix; Plate 17, I, II. V. Gelatin plate, four days at 22°. nies. VI. Gelatin plate, ten days at 22°. colony. VII. Gelatin plate, ten days at 22°. colony. X 60. Deep colo X 90. Superficial X 90. Superficial VIII. Microscopic preparation. Pure culture from agar plate. 500. IX. Different varieties of coli bacteria. × 1000. Variable sizes. 品 |