252 H. A. MINOHIN. 
38. Ross, P. H.—‘ Reports on Experiments to ascertain the Ability of 
T'setse-Flies to convey Trypanosoma gambieuse from infected to 
clean Monkeys, and on an Intra-corpuscular Stage of the Trypano- 
soma,’! ‘Rep. Sleeping Sickness Comm.,’ viii, No. 17, 1907, 
pp. 80-85. 
39. Rovusaup, E.—“ ‘Transmission de Trypanosoma dimorphon par 
Glossina palpalis, R. Desb.,” ‘Ann. Inst. Pasteur,’ xxi, 1907, 
pp. 466-467. 
40. Scuaupiny, F.—“ Generations- und Wirthswechsel bei Trypanosoma 
und Spirochete,” ‘Arb. K. Gesundheitsamte, Berlin, xx, 1904, 
pp. 387-439, 20 text-figs. 
41. Sruntmann, F.—“ Beitrage zur Kenntniss der Tsetsefliege,” ‘Arb. K. 
Gesundheitsamte,’ Berlin, xxvi, 1907, pp. 1-83, pls. i-iv, 28 text-figs. 
42. Woopcocxk, H. M.—‘‘ The Hemoflagellates,” ‘Quart. Journ. Mier. Sci.,’ | 
N.s., vol. 50, 1906, pp. 151-331, 65 text-figs. 
APPENDIX. 
Since the above was written a detailed memoir” on the 
cytology of trypanosomes has been published by Salvin- 
Moore and Breinl, in which the authors take a very different 
view of the nature of the nuclear apparatus from that taken 
by me. They regard the kinetonucleus as an “ extra-nuclear 
centrosome” or blepharoplast, comparable with an intra- 
nuclear centrosome or karyosome contained within the princi- — 
pal nucleus. ‘lhe extra-nuclear centrosome is described as 
“a granule or small group of granules which stain like the 
intra-nuclear centrosome,” and the flagellum is stated to 
arise from one or more of these granules. In development 
the extra-nuclear centrosome is stated to arise from the intra- 
nuclear centrosome, which divides into two halves within the 
nucleus, after which one half is extruded from the nucleus to 
form the extra-nuclear centrosome. | 
1 This title is somewhat misleading; the author states (p. 83), ‘I have never 
seen any sign of an intra-corpuscular stage of the trypanosoma.” 
2 Salvin-Moore, J. E., and Breinl, A., “The Cytology of the Trypano- 
somes,” Part 1, ‘Ann. Trop. Med. Parasitology,’ vol. i, pp. 441-480, Pls. 
XXXVHI=xlii. ; 
