THE 



GEOLOGICAL MAGAZINE 



NEW SERIES. DECADE VI. VOL. 





No. VIII.— AUGUST, 1919. 



NOTICE OF CHANGE OF ADDRESS. 



All communications for the Editor of the " Geological 

 Magazine " should be addressed to R. H. Rastall, Esq., 

 M.A., F.G.S., Christ's College, Cambridge. Letters for 

 Dr. Henry Woodward, F.R.S., to be sent to Tudor 

 Cottage, Clay Hill, Bushey, Herts. Books and parcels, 

 especially from abroad, may be directed to the care of 

 the Publishers, Messrs. Dulau & Co., 34-36 Margaret 

 Street, Cavendish Square, W. 1. 



EDITOEIAL NOTES. 



OWING to the release of many geologists and Government workers 

 and the demobilization of old contributors, besides the addition 

 of numerous new ones, we have received, during the past few 

 months, a very large number of important and interesting azticles, 

 many of them on subjects of immediate topical interest, and therefore 

 necessitating early publication, and several also needing plates and 

 text-figures for their illustration. Some of our friends have kindly 

 come forward and contributed towards the cost of these necessary 

 but expensive additions to their articles, but owing to the present 

 high prices it is not possible to meet all the requirements of authois 

 in this respect and cover the cost of production with our present 

 circulation. The Geological Magazine is not primarily a money- 

 making proposition, nevertheless it is necessary to its continuance 

 that it should at least cover its expenses, and obviously the more 

 copies sold the better value can be given in return. Therefore it 

 behoves our friends, the readers and well-wishers, to use every effort 

 in their power to secure among their associates new subscribers and 

 increase its circulation, which is as essential to the life of a 

 periodical as to that of a living organism. 



A vacancy having arisen in the body of the Trustees of "The 

 Percy Sladen Memorial Fund" by the retirement, after five years 

 of office, of Sir John Rose Bradford, F.P.S., the Trustees requested 

 the President and Council of the Linnean Society to nominate a 

 successor to the Trust; and they have, in compliance, chosen 

 Dr. Arthur Smith Woodward, F.Pt.S., President of the Linnean 

 Society, to fill the vacancy for the term of five years. 



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