586 REVIEWS 



cate the action of a force which caused considerable crushing, and which 

 may have been due to meteoritic impact, followed, perhaps, by an intense 

 explosion. H. H. 



The Geology of the Compostela-Danao Coal Field. By Warren D. 



Smith. From the Philippine Journal of Science, Vol. II, No. 6, 



pp. 377-403. 15 pis., 3 maps. Manila, 1907. 

 The area mapped covers 36 square miles of mountainous country on the 

 Island of Cebu which is quite generally underlain with coal, probably of 

 Eocene age. In the area under consideration there are indications of the 

 presence of several milUon workable tons of coal, and these are now being 

 partially developed. The lack of suitable timber to support a rather weak 

 roof, and the high inclination of the beds offer great, but not insuperable, 

 difficulties for profitable mining. An igneous base underlies the region 

 and on it were deposited the coal measure shales, and the sandstones and 

 conglomerates of the Eocene. The Oligocene and Miocene are represented 

 by interesting deposits of limestone. H. H. 



Meteorite Studies, II. By Oliver Cummings Farrington. Field 



Columbian Museum, Publication 122. 18 pp., 14 pis, Chicago, 



1907. 



Complete descriptions are here given of a number of meteorites and of 



the conditions under which they were discovered. Photographs of the 



rocks and plans of various localities add to the clearness of the exposition. 



It will be remembered that the same author gave an excellent summary of 



the constituents, structure, and theoretical origins of meteorites in this 



Journal, Vol. IX, pp. 51, 174, 393, 522, and 623. H. H. 



