TITLES. 
Prof. 23 
293. *Plehn, A. Die Malaria der afrikanischen Negerbevolkerung, beson- 
ders mit Bezug auf die Immunitatsfrage. 8vo, 51 pp., 1 pi. (Jena, G. 
Fischer) 1902. 
294. Porta, A, Contributo alio studio degli Acanthometridi. Rend. 
1st. Lombardo xxxiv (1901), pp. 811-822, 2 pis. 
Abstract in J. R. Micr. Soc. 1903, p. 45. 
295. *Preble, R, B. The crescent form of the malarial parasite. Med. 
Age 1902, pp. 9-11. 
296. Prenant, A. Notes cytologiques. vn. Contribution a Fetude de la 
ciliation. Striation et ciliation de la partie adlierente du Myxidium 
lieberh'ihni. Arch. anat. micr. v, pp. 200-212, 7 text-figg. 
297. -. Striation et ciliation de la partie adherente du Myxidium 
lieberkuhni. C.R. Soc. Biol, liv, pp. 844-846. 
298. Prever, P. Cenni preliminari sulle nummulitidi dei dintorni di 
Potenza. Boll. Soc. geol. Ital. xx, 1901, pp. 488-505. 
299. -. Le nummuliti della Forca di Presta nell’ appennino centrale e 
dei dintorni di Potenza nelT appennino meridionale. Abh. Schweiz, 
pal. Ges. xxix, Mem. 3, 121 pp., 8 pis. 
300. Prowazek, S. Protozoen Studien i. (1) Bursaria truncatella und 
ihre Conjugation. (2) Beitrage zur Naturgeschichte der Hypotrichen. 
Arb. Inst. Wien xi, 1899, pp. 195-268, 4 pis. & 4 text-figg. 
301. -. Protozoen Studien n. Op. cit. xii, 1900, pp. 243-300, 2 pis. 
302. -. Protozoen studien in. Euplotes harpa. Op. cit. xiv, 1, pp. 81- 
88, 1 pi. 
303. -. Zur Entwickelung der Gregarinen. Arch. Protistenk. i, 
pp. 297-305, pi. 9. 
304. -. Notiz liber die Trichomonas hominis (Davaine). T. c. pp. 166- 
168, 4 text-figg. 
Abstract in Centrbl. Bakter. (1) xxxi, Ref. p. 572. 
305. -•. Studien zur Biologie der Zelle. Zeitschr. allg. Physiol, ii, 
pp. 385-394, 4 text-figg. 
306. -. Kerntheilung und Vermehrung der Polytoma. Oesterr. Bot. 
Zeitschr. li, 1901, pp. 51-60, pi. 1. 
Abstract in J. R. Micr. Soc. 1901, p. 545, and Zeitschr. wiss. Mikr. xviii, 
p. 103. 
307. -. Protozoenbericht fur das Jahr 1889. Arch. Naturg. lxii, n 
(3) 1896 (given out 1903), pp. 259-270, and for 1890, t. c. pp. 271-290. 
-& Joseph. [See Joseph & Prowazek (173).] 
[Przesmycki, A. M. Parasites of Rotifers Zook Rec. 1901 (208).] 
Abstract in J. R. Micr. Soc. 1902, p. 563. 
308. Reade, T. M. Marine Boulder Clay in County Cork, with notes and 
lists of Foraminifera, by Joseph Wright, F.G.S. Irish Natural, xi, 
pp. 29-35, 1 fig. 
309. -. Glacial and post-glacial features of the lower valley of the 
river Lime and its Estuary, with list of Foraminifera by Joseph 
Wright, F.G.S. P. Liverp. geol. Soc. ix, pp. 163-196, pis. 11-13, 
2 text-figg. 
310. *Rees, D. C. Malaria—its parasitology. Practitioner lxvi, 1901, 
pp. 271-300, 13 (58) figg. 
