28 Prot. 
II. Protozoa. 
[1911] 
Woodruff, L. L. The effect of 
excretion products of Paramoecium 
on its rate of reproduction. J. exp. 
Zool. Philadelphia 10 1911 (557-58i). 
509 
Woodruff, L. L. The effect of 
culture medium contaminated with 
the excretion-products of Paramoecium 
on its rate of reproduction. Proc. Soc. 
exp. Biol. Med. 8 1911 (100). \Vide 
(509).] 510 
Woodruff, L. L. and Baitsell, George 
Alfred. The reproduction of Paramoe- 
cium aurelia in a “ constant ” culture 
medium of beef extract. J. exp. Zool. 
Philadelphia 11 1911 (135-142). 511 
Woodruff, L. L. and Baitsell, George 
Alfred. Rhythms in the reproductive 
activity of Infusoria. J. exp. Zool. 
Philadelphia 11 1911 (339-359). 512 
Woodruff, L. L. and Baitsell, George 
Alfred. The temperature-coefficient 
of the rate of reproduction of Paramoe- 
cium aurelia. Amer. J. Physiol. 29 
1911 (147-155). 513 
Wright, Joseph. Boulder-Clays 
from the North of Ireland, with lists of 
Poraminifera. Belfast Rep. Nat. F. 
Cl. Ser. II 6 iv 1910-1911 Appendix 
No. 1 (1-8) 1 pi. 514 
Wright, Joseph. Foraminifera from 
the Estuarine Clays of Magheramorne, 
Co. Antrim, and Limavady Station, 
Co. Derry. Belfast Rep. Nat. F. Cl. 
Ser. II 6 iv 1910-1911 Appendix No. 2 
(11-20) pi. ii. 515 
Wright, Joseph. Foraminifera. 
Belfast Rep. Nat. F. Cl. Ser. II 6 iii 
1909-1910 (293 & 294). 516 
Wiilker, Gerhard. Die Technik der 
Amobenzuchtung. Centralbl. Bakt. 
Jena Abt. 1 50 Referate 1911 (577- 
610). 517 
[Yakimoff, Vas. L.] Hkhmobt>, Bac. 
,31. Kt> Bonpocy o reMonapa3HTH3M , h 
M0pCKHXT> ptiO'b. [Zur Frage iiber den 
Haemoparasitismus der Seefische.] J ur- 
jev Zeitschr. wiss. u. prakt. Veterin. 
med. 5 1911 (112-136) 1 Taf. 518 
[Yakimoff, Vas. L. u. Kohl-Yakimova, 
Nina.] Hkhmobt>, Bac. JI. h KoJib- 
SlKiiMOBa, Huna. FeMOiperapuHa 
KpoBiiuux'i. T'hjieivb IllaicaJia. 
[Die Haemogregarine der weissen Blut- 
Korperchen des Schakals.] R6v. 
vdtdrin. Moskva 13 1911 (289-294) 
1 Taf. 519 
[Yakimcff, Vas. L. u. Kohl-Yakimova, 
Nina.] Hkhmob'l, Bac. JI. h Kojil- 
Hkhmobu, Hnna. llupon.JiasMOS'b y 
sedy h nx r b croisds B'i» Ty finch. [Die 
Piroplasmose der Zebus und ilirer 
,,crois6s“ in Tunis.] R6v. vdtdrin. 
Moskva 13 1911 (641-643). 520 
Yakimoff, V. L. et Kohl-Yakimova, 
Nina. Sur la presence de Trypano- 
somes dans le sang des Bovidds h Tunis. 
Paris Bui. soc. path. exot. 4 1911 (309). 
521 
Yakimoff, V. L. and N. vide Man- 
ceaux, L. 
Yakimoff, V. L., Stolnikoff, V. I. et 
Kohl-Yakimoff, Nina. Contribution a 
l’6tude de V A chroma ticus vesperuginis 
(Dionisi). Arch. Protistenkunde Jena 
24 1911 (60-75) Taf. v-vii. 522 
Yorke, Warrington vide Stannus, 
Hugh S. 
Yorke, Warrington and Blacklock, B. 
The Trypanosomes found in two 
horses naturally infected in the Gambia 
Ann. trop. Med. Parasitol. Liverpool 
5 1911 (413-434) pi. xviii. 523 
II.— SUBJECT INDEX. 
COMPREHENSIVE AND GENERAL. 
0403 
Philosophy. 
The principles of Protistology ; 
Dobell, 138. 
Historical. 
t)ber die wahre Natur der von Will 
und Busch in Siphonophoren beob- 
achteten „Eingeweidewurmer“ ( Try - 
panophis grohbeni) ; Poche, 370. 
Bibliography, etc. 
Protozoan literature for 1910, with 
abstracts of the more important 
papers ; Gross, 202. — Record of Proto- 
zoan literature for 1910; Woodcock, 
505. 
Abstracts of papers dealing with 
trypanosomosis and piroplasmosis of 
animals for the year 1910 ; Knuth, 
247. 
