ON THE TRYPANOSOME OF THE LITTLE OWL. 
183 
9. — - — — “ Recherches sur le Leucoc y tozoon de la poule,” 
‘ Periodicite des formes sexuees dans le sang,” t. c., p. 688. 
10. “Sur un nouveau Leucocytozoon de la poule,” 
op. cit., lviii, 1910, p. 22. 
11. “ Nouvelles recherches sur Leucocytozoon sabra- 
zesi et L. caulleryi de la poule domestique du Tonkin,” * Bull. 
Soc. Path. Exot.,’ iii, 1910, p. 504. 
12. Mayer, M. — “Ueber ein Halteridiuin und Leucocytozoon des 
Waldkauzes und deren Weiterentwickelung in Stechmiicken.” 
‘ Arch. Protistenk.,’ xxi, 1911, p. 232, pis. 22 and 23. 
13. Minchin, E. A. — “ Observations on the Flagellates Parasitic in the 
Blood of Fresli-water Fishes,” * Proc. Zool, Soc.,* i, 1909, p. 2, 
pis. 1-5. 
14. — — — and Woodcock, H. M. — “Observations on Certain Blood- 
parasites of Fishes occurring at Rovigno,” ‘ Quart. Journ. Micr. 
Sci.,’ 55, 1910, p. 113, pis. 8-10. 
15. Rosenbusch, F. — “ Trypanosomen-Studien,” ‘Arch. Protistenk.,’ xv. 
1909, p. 263, pis. 25-27. 
16. Schaudinn, F. — “Generations- und Wirthswechsel bei Trypano- 
soma und Spirochaeta,” 'Arb. kais. Gesundhtsa.,’ xx, 1904. 
p. 387. 
17. Wenyon, C. M. — “ Report of Travelling Pathologist and Proto- 
zoologist,” ‘Rep. Wellcome Research Lab.,’ iii, 1908, p. 121, 
pis. 9-16. 
18. Woodcock. H. M. — “Studies on Avian Haemoprotozoa : (1) On 
Certain Parasites of the Chaffinch (Fringilla ccelebs) and the 
Redpoll (Linota rufescens),” 'Quart. Journ. Micr. Sci.,' 55. 
1910, p. 641, pis. 27-31. 
19. Zupitza, M. — “ Beitrag zur Kenntniss der Yogel- und Fiscli- 
trypanosomen Kamerund,” ‘Beiliefte Arch. Schiffs- u. Tropen- 
Hyg.,’ xiii, 1909, p. 100, 6 pis. 
EXPLANATION OF PLATES 20 and 21, 
Illustrating Observations by Messrs. E. A Minchin, M.A., 
F.R.S., and H. M. Woodcock, D.Sc., on ‘'The Try- 
panosome of the Little Owl (Athene noctua), with 
Remarks on the other Protozoan Blood-parasites Occur- 
ring in this Bird.” 
