TITLES. 
Prot. 27 
383. Roger, J. Un cas de contagion par cohabitation du Surra Nofd- 
Africain du chien. C.R. Soc. Biol, lix, pp. 333 & 334. [See II. G. 1.] 
384. & Greffulhe. Sur une trypan osomiase observde en Alg^rie. 
Op. cit. lviii, pp. 396 & 397, 826 & 827. [See II. o. 2.] 
385. Rogers, L. The conditions affecting the development of flagellated 
organisms from Leishman-Donovan bodies, and their bearing on the 
probable mode of infection. Lancet 1905, i, pp. 1484-1487. 
386. Ross, P. R. A note on the natural occurrence of piroplasmosis in 
the monkey ( Cercopithecus ). J. Hygiene v, pp. 18-23, 3 charts. 
387. Ross, R. Researches on malaria. J. Army Med. Corps, pp. 450- 
474, 541-579, 705-740, 9 pis., 7 text-figg. [Describes, at length, the 
progress and results of his original work on the malarial parasites of 
, birds ( Proteosoma ).] 
388. Rossle, R. Spezifische Sera gegen Infusorien. Arch. Hyg. liv, 
pp. 1-31, 
389. Russo, A. & di Mauro, S. Frammentazione del macronucleo nel 
Cryptochilum echini (Maupas), e sua significazione per la senescenza 
degli Infusorii. (Nota prel.) Boll. Acc. Gioen. lxxxiv, pp. 3-9, 
7 text-figg. 
390. . Differenziazioni citoplasmiche nel Cryptochilum echini (Mau- 
pas). Ciglia, granuli basilari, mioidi e cromidi. (Nota prel.) T. c. 
pp. 9-13, 2 text-figg. 
391. . La coniugazione ed il ringiovanimento nel Cryptochilum 
echini Maupas (Uronema echini Cudnot). (Nota prel.) Op. cit. lxxxv, 
pp. 10-15, 6 text-figg. 
392. Ruttner, F. fiber das Verhalten des Oberflachenplanktons - zu 
verschiedonen Tageszeiton im Grosson Ploner See und itl zwei 
Nordbohmischen Teichen. Forschber. . Plon xii, pp. 35-62, 1 pi., 
2 charts, 1 text-fig. 
393. Ru2i£ka, U. Ueber tinctorielle Differenzen zwischen lebendem und 
abgestorbenem Protoplasma. Arch. ges. Physiol, cvii, pp. 497-534. 
[See li. G; 2.] 
394. Rzehak, A. Geologische Beobachtungen bei Tanger. Verh. geol. 
Reichsanst. 1905, pp. 269-272. 
List of Foraminifera occurring. 
395. SabrazIcs, J. & Muratet, L. Frequence des Trypanosomes chez 
Mus rattus. Rar6t4 chez Mus decumanus et chez Mus musculus. 
Resistance du decumanus et du rat blanc a l’infestation naturelle. 
C.R. Soc. Biol, lix, pp. 441-443. 
396. Sacco, F. Les formations ophitif&res du Cr^tace. Bull. Soc. Beige 
Geol. xix, pp. 247-265, pi. 8. 
397. . II piacenziano sotto Torino. Boll. Soc. geol. Ital. xxiii, 
pp. 497-503. 
Presence of F oraminifera mentioned. 
398. Sambon, L. Kala-azar. Climate v (1904-1905), pp. 245-259, 
7 text-figg. 
399. Sander, L. Praktische Schlussfolgerungen aus den neuesten 
Trypanosoma - Forschungen. Verh. Ges. deutsch. Naturf. lxxv, 
ii (2), (1904), pp. 503-506. 
