Reviews — Ries & Watson — Engineering Geology. 85 



Pentanierana ; Protozeuga, n.g. of Terebratuloids, with genotype 

 Waldheimia mawi Davidson ; Lissatrypa, n.g. of Atrypidse with 

 genotype L. atheroidea — Athyris lara Davidson non Billings. 



The Crowsnest volcanics, so named from the Crowsnest Pass in 

 Alberta, near which they occur, consist of tuffs, agglomerates, and 

 a few flow rocks. Their interest lies mainly in the fragments of 

 which they are composed. These, according to Mr. MacKenzie, are 

 in order of abundance, trachytes, blairmorites, and latites. The 

 trachytes are rich in soda and comprise varieties bearing aegirite-augite 

 and melanite. Blairmorites, of which the name was suggested by 

 C W. Knight, are ultra-alkaline, soda-rich porphyries, containing 

 phenocrysts of analcite in quantities up to 71 per cent. This 

 occurrence links up the alkaline rocks of Montana with the ultra- 

 alkaline intrusive mass of Ice River, B.C., so that the series form 

 a related group "the Rocky Mountain Petrographic Province ". 



Anything that throws light on the problematic Beatricea is 

 welcome, and Dr. Raymond's careful description of his new genus 

 Cryptophragmus is illustrated by some excellent photographs. He 

 follows Nicholson and Professor Parks in referring the Beatriceidse to 

 the Stromatoporoids, and regards the inner septate tube as an axial 

 support secreted by the zooids of the ensheathing colony. 



Certain remarks as to dates of publication contained in our review 

 of the last part of this Bulletin (Geol. Mag., November 1914, p. 525) 

 appear to have been not altogether justified. We have in consequence 

 been favoured with a set of the papers contained in that part, each in 

 a dated wrapper of its own and with separate pagination — a fact to 

 which attention has been conscientiously drawn by a rubber stamp. 

 ¥e are therefore bound to suppose that the separate papers were 

 actually available on those dates. This of course leaves us still 

 wondering why it should have taken two months and a half for 

 a copy of the whole to reach London. Bulletin No. 3 took one month 

 and a half, and Bulletins 4 and 5 a little over a month. The war is 

 really not enough to account for this. "We are, however, very glad 

 to see that each paper is now issued as a separate number of the 

 Bulletin, so that there need in future be no confusion regarding either 

 date or pagination, and it should be quite possible to publish each 

 part on the actual date given. "We cannot conclude these slightly 

 critical remarks without recognising the generous freedom with 

 which the Canadian authorities distribute these valuable publications, 

 a liberality so great that no price is marked either on the works 

 themselves or on the announcements which invite those interested to 

 make application for them to the Director of the Geological Survey. 

 F. A. B. 



III. — Engineering Geology. By Heiniuch Ries and Thomas L. 

 "Watson, pp xxvi 4- 672, with 225 illustrations in the text and 

 104 plates. New York, John Wilev and Sons, Inc. ; London, 

 Chapman & Hall, Ltd., 1914. Price $4.00 net. 



HI HIS treatise embodies the courses of teaching given by the 

 J authors to the students at the Universities of Connell and 



Virginia respectively. It affords a comprehensive survey of the 



