H frot. , xvm. protozoa. [1905] 
free, but enclosed in a cyst, Laveran (227).— Schizogony in Lankesterella 
tritonis n. sp., described, Fantham (126). 
Multiplication of Piroplasma cams , Nuttall & Graham-Smith (325). — 
Peculiar unequal fission (successive) of Piroplasma donovani in cultures, 
thin, spirillar forms being cut off from the parent parasite, Leishman & 
Statham (253). 
Schizogony of various types in Thelohania mcenadis , described, Perez 
(344). 
Asexual multiplication of Blastulidium by plasmotomy, a budding-like 
process, recalling that of yeasts, Perez (340). 
Schizogonous multiplication of the different types of element in Micro- 
klossia, Krassilstschik (220 & 221). 
Mode of multiplication of Trypanosoma gambiense in the Tsetse-fly 
( 01 . palpalis ), Gray & Tulloch (164). — Multiple division of Avian 
Trypanosomes, by rosette-formation, Novy & MacNeal (323). 
Multiplication of Dunaliella salina n. sp., Hamburger (172). 
The occurrence of longitudinal division in Opalina ranarum confirmed, 
SCHOUTEDEN (418). 
2. Sexual: gametes and conjugation. 
On the various modes of sexual conjugation in Protozoa ; the relation 
between conjugation and trophic (vegetative) life, Stempell (472). 
Sexual conjugation (karyogamy) in Plasmodiophora, autogamous in 
character, Prowazek (363). 
The gametes in Clepsydrina ovata are perfectly similar and equal ; hence 
conjugation is isogamous, Sohnitzler (416). — Formation of sporoblasts 
(gametes) in the Monocystid Gregarines Oonospora and Urospora ; 
distinctions between the male and female elements, and hence anisogamous 
conjugation, Brasil (43) : also in the case of Monocystis itself, id. (42 & 
44). 
Gametocyte- and gamete-formation in Coccidium subepithelialis, Moroff 
& Fiebiger (302). 
Sexual forms (micro- and mega-gametocytes and micro-gametes) of a 
pew “ Hcemamoeba” described, Vassal (495). 
Sexual conjugation (feebly anisogamous) in Spkceractinomyxon , described, 
Caullery & Mesnil (72). 
Gametogony and conjugation in Microklossia, Krassilstschik (220). 
Conjugationof gametes (practically equal) in Dunaliella n. g., Teodoresco 
( 478). — Formation and behaviour of microzooids (probably isogametes) in 
Hcematococcus pluvialis , Peebles (333). — Gametogenesis and conjugation 
(of flagellate gametes) in Pseudospora volvocis, described, Robertson 
(379). 
Sexual forms and conjugation (in the Invertebrate host) of Trypanosoma 
lewisi , described, Prowazek (362). — Sexual forms of Trypanosoma brucii 
and T, gambiense, in the Tsetse-flies ( Glossince ), characterized, Koch (213). 
Occurrence of micro- and mega-gametes, their formation and conjugation, 
described in Treponema ( Spirochceta ) pallidum ( = Trypanosoma luis), 
Krzysztalowicz & Siedlecki (223). 
Conjugation in Cryptochilum echini , described, Russo & di Mauro 
(391). 
3. Nuclear behaviour and changes during division : 
directive centres, etc. 
On the behaviour of the nuclear constituents in the conjugation of 
Protozoa ; elaboration of a scheme founded on “ Trypanosoma ” nootuce ; 
a universal “nuclear duality” to be recognized amongi- Protozoa, of 
somatic (trophic) and sexual (generative) constituents, Schaudinn (402). 
