Contents [continued). 



Page 

 Miss Annie Porter and Dr. H. B. Fanthara, F.Z.S. On a new Trjpanoplasm, T. dcndrocceli, 



sp. n., from Bendroroelum lacieuyn 670 



1. The Morphology and Life-History of Eimeria {Coccidium) avium: a Sporozoon causing a 



fatal disease among young Grouse. By H. B. Fantham, D.Sc. Lond., B.A.Cantab., 

 A.R.C.S., F.Z.S., Christ's College, Cambridge, Assistant to the Quick Professor of Biology, 

 Cambridge, and Protozoologist to the Grouse Disease Inquiry. (Plates LV.-LVIII.). . 673 



2. Observations on the Parasitic Protozoa of the Red Grouse {Lru/ojms sco(icus), with a 



Note on the Grouse Fly. By H. B. Fantifam, D.Sc. Lond., B.A.Cantab., A.R.C.S., F.Z.S., 

 Christ's College, Cambridge, Assistant to the Quick Professor of Biology, Cambridge, 

 and Protozoologist to the Grouse Disease Inquii-y. (Plates LIX.-LXI.) 692 



3. Experimental Studies on Avian Coccidiosis, especially in relation to young Grouse, Fowls, 



and Pigeons. By H. B. Fantham, D.Sc. Lond., B.A. Cantab., A.R.C.S., F.Z.S., Christ's 

 College, Cambridge, A.ssistant to the Quick Professor of Biology in the University of 

 Cambridge ; Protozoologist to the Grouse Disease Inquiry. (Plate LXII.) 708 



4. Observations on the Blood of Grouse. By H. B. Fantham, D.Sc. Lond., B.A. Cantab., 



A.R.C.S., F.Z.S. , Christ's College, Cambridge, Assistant to the Quick Professor of 

 Biology in the University; Protozoologist to the Grouse Disease Inquiry. (Plate 

 LXIII.) 722 



5. Zoological Results of the Third Tanganyika Expedition, conducted by Dr. W. A. 



Cunnington, F.Z.S.. 1904-1906.— Report on the Ostracoda. By Prof. G. O. Sars, 

 C.M.Z.S. (Plates LXIV.-LXXIII.) 732 



6. On Tritylodon, and on the Relationships of the Multituberculata. By R. Broom, M.D., 



D.Sc, C.M.Z.S 7(iO 



May 24, 1910. 



The Secretary. Report on the Additions to the Society's Menagerie during the month of 



April 1910 708 



Mr. Ernest Gibson, F.Z.S. Exhibition of a skin of Felis gcoffroyi 769 



1. Observations on the Anatomy and General Biology of some Members of the Larger 



Cetacea. By D. G. Lillie, B.A., Hutchinson Research Student of St. John's College, 

 Cambridge. (Plate LXXIV.) 769 



2. Zoological Results of tlie Third Tanganyika Expedition, conducted by Dr \V. A. 



Cunnington, F.Z.S., 1904-1905.— Report on the Rotifera. By Ciiaulks F. Rol'.ssei.et, 

 F.R.M.S. (Plate LXXY.) .702 



3. The Marine Fauna of the Mergui Archipelago, Lower Burma, collected by Jas. J. 



Simpson, M.A., B.Sc, and R. N. Rudmose-Brown, D.Sc, University of Aberdeen, 

 February to May 1907.— The Hydroids. By James Ritchie, M.A., B.Sc, Natural 

 History Department, The Royal Scottish Museum. (Plates LXXVI. & LXXVII.) 799 



4. Hydroids from Christmas Island, Indian Ocean, collected by C. W. Andrews, D.Sc, 



F.R.S., F.Z.S., in 1908. By James Ritchie, M.A., B.Sc, Natural History Department, 

 The Royal Scottish Museum 826 



