284 REPORTS ON THE STATE OF SCIENCE, ETC. 



relating to the expedition are in Discovery, February 1932, p. 40 ; Nature, 

 January 9, 1932, p. 55 ; The Empire Survey Review, vol. i, p. 217 ; The 

 Times, etc. 



Arrangements have been made with the Linnean Society of London to 

 publish the general scientific results of the expedition as a series of papers 

 in the Journal of the Society. The following papers are complete and now 

 in the press : (i) Worthington : ' General Introduction and Station List.' 

 (2) Worthington : ' Fishes other than Cichlidae.' (3) Beadle : ' Chemistry 

 in relation to Fauna and Flora.' (4) Beadle : ' Bionomics of African 

 Swamps.' (5) H. W. Parker : ' Amphibians and Reptiles.' (6) Prof. P. 

 de Beauchamp : ' Rotifera and Gastrotricha.' 



Another series of about six papers will be ready for publication in the 

 autumn of this year. 



The expedition was financed by the Royal Society Government Grants, 

 British Museum (Natural History), Percy Sladen Memorial Trust, Balfour 

 Fund, British Association, Royal Geographical Society, Gloyne Fund, 

 Gonville and Caius College, Worts Fund, and assistance was also received 

 from the Uganda Government. The balance sheets have already been 

 audited by the Royal Society Government Grants, and have been sub- 

 mitted to the British Association through Prof. Stanley Gardiner. All the 

 societies who contributed grants have agreed to allow the balance of £170 

 at the completion of the field work to be devoted to publication in the 

 Linnean Society's Journal. 



PETROGRAPHIC CLASSIFICATION. 



Interim Report of Committee appointed to examine and report upon 

 Petrographic Classification and Nomenclature (Mr. W. Campbell Smith, 

 Chairman ; Dr. A. K. Wells, Secretary ; Prof. P. G. H. Boswell, 

 Prof. A. Holmes, Prof. A. Johannsen, Prof. P. Niggli, Prof. H. H. 

 Read, Prof. S. J. Shand, Dr. H. H. Thomas, Prof. C. E. Tilley, 

 Dr. G. W. Tyrrell). 



The Committee first met in December 1931, and after general discussion 

 of possible lines of action decided to issue a questionnaire framed to ascer- 

 tain the opinions of petrologists on controversial points in nomenclature and 

 classification. The questionnaire, in its approved form, was published in 

 February 1932, in the Geological Magazine and in Science, in England and 

 the U.S.A. respectively. 



As a result, replies to some or all of the questions have been received from 

 H. L. Ailing, E. B. Bailey, A. F. Buddington, R. Campbell, T. Gillette, 

 C. K. Graeber, M. G. Hoffman, H. Jeffreys, A. J. Johannsen, W. Q. 

 Kennedy, E. S. Larsen, B. Lightfoot, A. C. Macgregor, A. M. Macgregor, 

 P. Niggh, H. S. Palmer, T. C. Phemister, H. H. Read, J. B. Scrivenor, 

 S. J. Shand, Q. J. Singewald, G. W. Tyrrell, and A. C. Woodford. Dr. A. 

 Brammall has rendered valuable assistance to the Committee in connection 

 with the preparation of the questionnaire and the discussion of the results. 



Some of the replies have taken the form of lengthy communications, and, 

 particularly on the more controversial questions, opinions are forcefully 

 expressed. 



The problem before the Committee was twofold : the accurate naming 



