12 Prot . 
XVIII. PROTOZOA. 
3. Physiology. 
Gretiie discusses the action of certain derivatives of quinine on the 
Infusoria. 
Hem meter discusses the role of acid in the digestion of Rhizopods. 
Lillie gives an account of his experiments and observations on the 
regeneration of Stentor from small fragments. 
Mendelson discusses thermotropy amongst the unicellular organisms. 
Neisser considers the hygienic importance of Protozoa in water. 
Verworn describes experiments on the cellular physiology of 
Rhizopods. 
4. Taxonomy, &c. 
Brandt (2) gives a systematic account of the Tintinnidai. 
Garter (1) gives a classification of the Radiolaria. 
Dawson reviews the evidence for the animal nature of Eozoon. 
Delage & Herouard publish a systematic account of the Protozoa in 
vol. I of their Traite de Zoologie Concrete. 
Dill discusses the members and near relatives of the genus Chlamydo- 
monas. 
Lameere discusses the position of the Protozoa in the animal kingdom. 
Sciiaudinn (1) publishes a synopsis of the Heliozoa. 
Sciilumberger gives a note on the biology of Foraminifera. 
Shevyakov monographs the Aspirotroeh Giliata , and adopts the fol- 
lowing classification : — 
Group A. Gymnostomata. 
Div. I. Prostomata. 
Subdiv. 1, Holophryina ; 2, Actinoholina ; 3, Colepina \ 
4, Cyclodinina ; 5, Prorotrichina. 
Div. II. Pleurostomata. 
Subdiv. G, Amphileptina ; 7, Trachelina ; . 8, Nassulina. 
Div. hi. Ilypostomata. 
. Subdiv. 9, Chlamydodonta ; 10, Dysterina ; 11, Onychodac - 
tylina. 
Group B. Trichostoma. 
(i) . Subdiv. 12, Chilifera. 
(ii) . Subdiv. 13, Microthoracina ; 14, Paramcecina ; 15, Urocen - 
trina ; 16, Pleuronemina ; 17, PlagiopyUna. 
(iii) . Subdiv. 18, Isotrichina. 
Group C, 
Subdiv. 19, Opalinina. 
Villet maintains that the Gregarinidea are not Protozoa but related 
to the Cestoda. 
Wildemann publishes a systematic essay on the Volvocacecc. 
5. Cultivation, Preparation, &c. 
Beyerinck, and Casagrandi & Barbagallo-Rapisardi discuss the 
cultivation of Amoshce. 
Sciiardinger describes the making of pure cultures of Protozoa. 
Shattock & Ballance give an account of the cultivation of parasitic 
Protozoa from tumours. 
