THE 



GEOLOGICAL MAGAZINE 



VOLUME LIX. 



No. VIII.-AUGUST, 1922. 



EDITORIAL NOTES. 



TT^OR reasons of economy and for the convenience of the printers, 

 -^ each contribution to the Geological Magazine is set up in type 

 only a short time before actual publication. It is therefore most 

 desirable that proofs should be returned by authors as speedily as 

 possible. Each number is supposed to appear on the first of the 

 month, but lengthened retention of proofs by authors has of late 

 often led to serious delay. For example, one proof for the July 

 number was not received by the Editor till 3rd July ; hence the very 

 late appearance of that particular number. The Editor also desires 

 to ask contributors to return to him in every case the order-form for 

 separate copies enclosed with proofs of original papers, blank or 

 cancelled if none are required. If this form is not returned at all, 

 or sent direct to the printers, some unnecessary correspondence 

 is bound to ensue. Unless there is any special reason to the contrary, 

 manuscripts or originals of plates and figures need not be 

 returned with proofs ; much money is wasted in this way, 

 especially as postage is often insufficiently prepaid. The addressed 

 envelopes sent out with proofs should always be used for return, 

 as it is possible to ensure that a particular type of envelope 

 shall be forwarded when the Editor is away from Cambridge, as 

 frequently happens. 



H: ^ ^ H: H: 



W. Hepper & Sons, Ltd., Publishers, Cambridge, have in the press 

 a volume entitled Cements and Artificial Stones .- A Descriptive 

 Gatalogxie of the Specimens in the Sedgivick Museum, Camhridge, 

 by the late John Watson, Hon. M.A. (Cantab.), F.G.S. ; edited by 

 R. H. Rastall, Sc.D. This book, like the works of the same author 

 on Building Stories and Marhles, is much more than a meie catalogue 

 of specimens. The student will find in it a brief history of the origin 

 and development of the cement industry, as well as instructive 

 notes on the manufacture and uses of the various kinds of cement, 

 concrete, and artificial stone, which are exhibited in the Economic 

 Department of the Sedgwick Museum of Geology, at Cambridge. 

 Professor J. E. Marr, Sc.D., F.R.S., contributes a preface, in which he 

 states that the book should be found useful by all who are interested 

 in the subject. 



***** 



The National Academy of Sciences in "Washington has awarded the 

 gold B. G. Elliot Medal to Dr. Othenio Abel, Professor of Palseo- 

 biology in the University of Vienna, for his memoir entitled 

 " Methoden der palaeobiologischen Forschung " published in 

 Abderhalden's Handbuch der biologischen Arbeitsmethoden. 



VOL. LIX.— NO. VIII. 22 



