AMOEBA PULMONALIS A. UROGENITALIS 37 



2. Amoeba gingivalis, Gros. J 



3. Amoeba buccalis, Sternberg.- 



4. Amoeba dentalis, Grass!. 3 



Of these three species the last mentioned may certainly be 

 eliminated, as its describer has himself suggested the possibility of 

 having mistaken salivary corpuscles for amoebae ; the other two 

 species are supposed to live in the tartar on teeth. They have 

 not again come under observation, and, on the other hand, Celli 

 and Fiocca distinctly state that they have never found amoeba-like 

 organisms in the oral cavity. 



5. Amoeba pulmonalis, Artault. 4 



The author discovered a few amoeboid formations with nucleus 

 and vacuole in the contents of a lung cavern. In the fresh condition 

 they were distinguishable from leucocytes by their remarkable 

 capacity of light refraction ; they were also much slower than the 

 latter in staining with methylene blue or fuchsine ; their movements 

 became more lively in a strong light. Water and other a*gents 

 killed them, and then, even when stained, they could not be 

 distinguished from leucocytes. 



6. Amoeba urogenitalis, Baelz. 5 



This species was found in masses in the sanguineous urine as 

 well as in the vagina of a patient in Japan, aged 23, in whom, 

 shortly before death caused by pulmonary tuberculosis, haematuria 

 with severe tenesmus of the bladder had set in. The amoeba, 

 which showed great motility, and had a diameter of about 0-050 mm. 

 when quiescent, exhibited a granular plasma and a vesicular 

 nucleus. Baelz is of opinion that these parasites were introduced 

 into the vulva with the water used for washing the parts, and 

 thence penetrated into the bladder and vagina. 



Similar cases are also reported by other authors : Jurgens/' Kartulis/ 



1 Gros, G., " Fragm. d'helm. et de phys. microsc." (Bull. soc. Imp. d. Natural, de 

 Moscou, 1849, i and 2,' p. 555). 



2 Sternberg, in Zeitschr. /. neuere Med., 1862, Nos. 20-24, published by Walter, 

 in Kiew, and issued in the Russian language. 



8 Grassi, B., in Gazz. med. ital. lomb (8), 1879, i., No. 45, p. 445. 



4 Artault, St., " Flore et faune d. cav. pulmon." (Arch, de parasit., 1898, i., p. 275). 



5 Baelz, E., " Ueb. einig. neue Paras, d. Mensch." (Berl. klin. Wochenschr., 1883, 

 P- 237). 



ti Jiirgens, Deutsch. med Wochenschr., 1892, p. 454. 



' Kartulis, " Pathog. Protoz. b. Mensch." (Zeitschr. f. Hyg., 1893, xiii - P- 2 -^nm. 2). 



