Tort. 1 
PROTOZOA. 
BY 
Stuart 0. Ridley, M.A., F.L.S., F.R.M.S. 
THE GENERAL SUBJECT. 
Chief works on. 
1. Kent, W. S. Manual of the including a description of all 
known Flagellate, Ciliated, and Tentaculiferous Protozoa^ British 
and Foreign, and an account of the Organization and Affinities of 
the Sponges. London : 1880, 4to, pts. 1-3, pp. 1-432, pis. i.-xxiv. 
Deals with the history of the subject ; with the Protozoa as a whole ; and 
with the physiology, affinities, distribution, methods of preservation and 
investigation of the Infusoria in particular. The theories of spontaneous 
generation and the nature and affinities of the Sponges are discussed. 
The latter are considered as Protozoa^ allied to those Flagellata provided 
with cup-like disks or collars. Classifications are given, followed by the 
commencement of a systematic description of the Infusoria. It must 
be noted that the term Infusoria is here used sensu latiori ; vide Classifi- 
cation. 
Grassi, B. Dei Protozoi parassiti, e specialmente de quelli che sono 
nel Uomo. Gazz. med. Italo-Lomb. xxxix. p. 445. 
A preliminary paper, enumerating 27 species (1 sp. n. of Infusorians, 2 
of Rhizopods, and 8 of Monads) . 
Gruber, A. Kleine Beitrage zur Kenntniss dor Protozoen. Ber. 
Ges. Freiburg, vii. p. 4. 
Maggi, L. Esame protistologico delle acque di alcuni laghi italiani. 
Boll, scient. ii. p. 33. 
Parona, C. Prime ricerche intorno ai Protisti del Lago d’Orta, con 
cenno della loro corologia italiana. Tom. ext. p. 17. 
[Not seen by the Recorder.] 
Eaun^. 
List of Protozoa from three English localities ; M. C. Cooke, J. Quek. 
Club, 1880, pp. 105 & 106. 
1880. [voL. XVII.] D 6 
