. Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers. n. of Exp. Med., 1909, XI, 84 and 392. Norris, Pappenheimer and Flournoy. Journ. of Infect. Diseases, 1906, p. 527. Novy and Knapp. Journ. of Infect. Diseases,4906, III, 291. Perrin. Arch, fur Protist., 1906, VII, 131. Schaudinn u. Hoffmann. Arbeit a. d. Kaiserl. Gesundh., 1905, XXII. Schereschewsky. Centralbl. f. Bakt., etc. Orig. Abt. I, 1908, XLV, 91. Swift. The Journ. of Cutaneous Dis., 1909, July, and the Arch, of Int. Med.,1909, IV, 376 and 494. CHAPTER XLIV. BO
. Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers. n. of Exp. Med., 1909, XI, 84 and 392. Norris, Pappenheimer and Flournoy. Journ. of Infect. Diseases, 1906, p. 527. Novy and Knapp. Journ. of Infect. Diseases,4906, III, 291. Perrin. Arch, fur Protist., 1906, VII, 131. Schaudinn u. Hoffmann. Arbeit a. d. Kaiserl. Gesundh., 1905, XXII. Schereschewsky. Centralbl. f. Bakt., etc. Orig. Abt. I, 1908, XLV, 91. Swift. The Journ. of Cutaneous Dis., 1909, July, and the Arch, of Int. Med.,1909, IV, 376 and 494. CHAPTER XLIV. BODO. POLYMASTIGIDA. CILIATA. SPOROZOA. BODO LACERT^ (GRASSI). Bodo lacertse is frequently found in the intestinal contents of mostof the higher animals, hence it is easily obtained for class study. Aspecies of the Bodo has been observed in human urine (Bodo urin-carius), but it is probably a harmless invader. It is lancet- or wedge-shaped, the posterior part of the body beingturned a half to a whole spiral on itself. It possesses two character-istic flagella, equal in thickness but unequal in length. In motion the Fig. 182. Bodo lacertoe (Grassi). a living; h and c stained; h type without, c type with chromidium, . (1000 : 1). (After v. Prowazek, from Kisskalt and Hartmann.) longer one is directed forward, while the shorter is carried backward,functioning as a rudder, or a towing flagellum. Both flagella springfrom basal granules which are well demonstrated by the iron hsema-toxylin stain. They are situated in the extreme anterior part of thebody and are attached to the nucleus by a delicate fibril (Fig. 1S2,h, c). The movement of the organism is characteristic, it consists in 584 POLYMASTIGIDA. CILIATA. SPOROZOA. 585 a rapid irregular swimming in various directions with the anteriorflagellum moving from side to side. The body itself shows a slightlysinuous motion. There are two types of nuclei seen. First, the typical vesicularnucleus most frequently seen among the flage
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