IV 



Page 

 The Secretaky. Report on the Additions to the Society's 

 Menagerie during the months of June, July, August, 

 and September, 1915 705 



Mr. R. I. PococK, F.R.S., F.Z.S., Curator of Mammals. 



Exhibition of burrows of Trapdoor Spiders 707 



Mr. D. SETH-SMriH, F.Z.S., Curator of Birds. Exhibition 

 of a living male hybrid Swinhoe's and Silver 

 Pheasant 707 



Mr. D. Seth-Smith, F.Z.S., Curator of Birds. Exhibition 

 of an abnormal male Mandarin Duck {uEx gcderi- 

 culata). (Text-figure 1.) 708 



The Secretary. Report on the Additions to the Society's 



Menagerie during the month of October 1915 708 



Prof. H. Maxwell Lefroy, M.A., F.Z.S., Curator of Insects. 



Notice of Report on the House- Fly Investigations ... 709 



Mr. C. J. C. Pool, Assistant Curator of Insects. Notes 



from the Caird Insect House 709 



Mr. R. W. Harold Row, B.Sc, F.Z.S. Exhibition of 



photographs of an abnormal Frog 712 



PAPERS. 



24. The Head Cavities and Develojoment of the Eye 



Muscles in Trichosiirus viblpecula^ with Notes on 

 some other Marsupials. By Elizabeth A. Eraser, 

 B.Sc. (Lond.), F.Z.S. , Embryological Laboratory, 

 Department of Zoology, University of London, 

 University College. (Plates I. & II.. and Text- 

 figures 1-26.) '. 299 



25. On the Organ of Jacobson and its Relations in the 



"Insectivora." — Paxt II. Taljxi, Centetes, and Chryso- 

 chloris. By Lieut. R. Broom, M.D., D.Sc. C.M.Z.S.. 

 R.A.M.C. (Plates III. & ly.) '. U7 



