40 



accessory genital organs. The investigation had been pursued by 

 the study of sections as well as by dissections, and a number of 

 important anatomical I'esults were set forth. The ganglion on 

 the visceral loop identified by Lacaze-Duthiers and Bouvier as 

 sub-intestinal was shown to be the true sub intestinal ganglion, 

 whilst the ganglion described under that name by Boutan and 

 B. Haller was shown to be the enlarged right end of an elongate 

 and diffuse visceral ganglion. The ccelomic cavity was shown to 

 be larger in extent in the Neritidte than in any other adult 

 Gastropods, and to be divisible into a left pericardial and a right 

 garadial division. The macroscopical and microscopical characters 

 of the accessoiy genitalia were described in full, and in conclusion 

 the relationships of the ISTeritidse inter se were discussed. 



RuwENzoBi Expedition. 



Mr. W. R. Ogilvie-Grant, F.Z.S., gave an account of the 

 expedition which he had organized to collect in the Ruwenzori 

 range of mountains in Equatorial Africa. He had obtained 

 sufficient funds through the generosity of H.G. The Duke of 

 Bedford, President of the Society, the Earl of Dartmouth, 

 Viscount Iveagh, the Hon. N. 0. Rothschild, Sir Alexander Baird, 

 Sir Ludwig Mond, Mr. W. A. Bell, Mr. C. Ozarnikow, and 

 Mr. W. H^St. Quintin, Fellows of the Society, Lord Strathcona 

 and Mount Royal, the Trustees of the Percy Sladen Fund, and 

 the Worshipful Company of Fishmongers. It had been agi-eed 

 that the first set of specimens collected should be presented to the 

 British Museum of Natural History. The expedition had been 

 led by Mr. R. B. Woosnam and had consisted of that gentleman, 

 Mr. R. E. Dent, the Hon. Gerald Legge, and Mr. Douglas 

 Carruthers, with Mr. A. F. R. Wollaston as Medical Officer and 

 botanical collector. The results had been extremely successful, 

 amongst the specimens obtained having been 404 Mammalia, 

 2470 Aves, 135 Reptiles and Batrachia, 31 Pisces, and a very 

 large number of Invertebrates. 



Mr. R. B. WoosxAM gave an account of the Expedition 

 illustrated by lantern-slides. 



The following Memoirs on the Zoological Results of the 

 Ruwenzori Expedition were presented to the Meeting and will 

 be published in the Scientific Transactions of the Society : — 



0. Thomas, F.R.S., F.Z.S., and R. C. Wroughton, F.Z.S.— 

 Report on Mammalia. 



G. A. BouLENGER, F.R.S., V.P.Z.S.— Report on Fishes, 

 Batrachians, and Reptiles. 



E. A. Smith, I.S.O., F.Z.S.— Report on Mollusca. 



A. S. Hirst. F.Z.S. — Report on Arachnida. 



