TITLES. 
Prot. 25 
345. Perrin, W. S. A preliminary communication on the life-history of 
Trypanosoma balbianii. P. R. Soc. London 76 B, pp. 368-375, 
4 text-figg. 
346. Peters, A. W. The sequence of organisms in a Protozoan culture 
and its irreversibility. Science xxi, pp. 851 & 852. 
347. . An analysis of physiological conditions in a Protozoan culture. 
T. c. p. 852. 
348. Petrie, G. F. Observations relating to the structure and geographical 
distribution of certain Trypanosomes. J. Hygiene v, pp. 191-200, 
pi. 8. 
349. Pfeiffer, E. Ueber trypanosomenahnliche Flagellaten in Darm von 
Melophagus ovinus. Zeitschr. Hygiene 1, pp. 324-330, pi. 3. 
350. Pinoy, — . Role des Bact^ries dans le d^veloppement du Plasmodio- 
phora brassicce, Myxomyckte parasite produisant la hernie du chou. 
C.R. Soc. Biol, lviii, pp. 1010-1012. [See n. B. 1.] 
351. Pittaluga, G. Sobre las afinidades zoologicas y evolucion de los 
Trypanosoma. Bol. Soc. espan. v, pp. 192-196. 
Brief resume of part of (352). 
352. . Sobre los caracteres morfologicos y la clasificacion de los 
“ Trypanosomas.” Rev. Acad. Ciencias, Madrid, ii, pp. 331-379. 
General account of the Trypanosomes and the question of their rela- 
tion to the Hoematozoa. 
353. . Estudios acerca do los Dipteros y de los parasitos que trans- 
miten al hombre y & los animales aomesticos. Op. cit. iii. pp. 292-362, 
402-504, 505-586, 76 figg., many on 9 pis., rest in text. 
Includes general account of malarial parasites and Trypanosomes, 
with figures. 
354. Plimmer, H. G. Note on the effects produced on rats by the 
Trypanosomata of Gambia fever and sleeping sickness. P. R. Soc. 
London lxxiv, pp. 388-390. 
355. Popofsky, A. Weiteres fiber die Acanthometriden der Plankton- 
Expedition. (Vorlaufige Mittheilung.) Arch. Protistenk. v, pp. 339- 
357, pis. 14 & 15. 
356. . Die nordischen Acantharien. Theil I, Acanthometriden. 
Nord. Plankton (3) xvi, 69 pp. 21 text-figg. 
General enumeration of Acanthometridce occcuring in plankton north of 
50° N., with distribution and diagnoses. 
357. Pound, C. J. On Trypanosoma and their presence in the blood of 
Brisbane rats. P. Soc. Queensland xix, pp. 33-38. 
358. Prandtl, H. Reduktion und Karyogamie bei Infusorien. Biol. 
Centrbl. xxv, pp. 144-151, 3 text-figg. 
359. Prever, P. L. Le Nummuliti e le Orthophragmine di due localita 
dell’ Appennino pavese. Rend. 1st. Lombardo (2) xxxviii, pp. 478- 
482. 
360. . Sulla fauna nummulitica della scaglia nell* Appennino 
centrale. Atti Acc. Torino xl, pp. 566-578, 1 pi. 
361. & Silvestri, A. Contributo alio studio delle Orbitolinince . Boll. 
Soc. geol. Ital. xxiii, pp. 467-486, 5 text-figg. 
362. Prowazek, S. Studien fiber Saugetbiertrypanosomen. Arb. Biol. 
Abt. Laud.-Forstwirtsch. xxii, pp. 1-45, pis. 1-6, 4 text-figg. 
