REVIEWS 783 



Notes on the Geology and Paleontology of the Lower Saskatchewan 

 River Valley. By E. M. Kindle. Geol. Sur., Canada, 

 Museum Bull. No. 21, 1915. Pp. 25, pis. 4. 

 Description of Silurian sections and faunas, including new species, 

 Leptaena sinuosus and L. Parvula. 



H. R. B. 



The Geology and Mineral Resources of the Buller-Mokihinui Sub- 

 division, Westport Division, New Zealand. By P. C. Morgan 

 and J. A. Bartrum. New Zealand Dept. of Mines, Geol. 

 Surv., Bull. No. 17, new series. 1915. Pp. 210, pis. 19, figs. 1, 

 maps 9. 

 This area is situated on the northeast coast of the South Island of 

 New Zealand. The rocks are described as consisting of the Aorere 

 series of metamorphosed Siluro-Ordovician sediments intruded by pre- 

 Triassic granites, a coal-bearing Eocene series, the Oamaru series of 

 Miocene age, and Quaternary deposits, both Pleistocene and Recent. 

 The Westport district is famous for its gold placers, fluvial and 

 marine gravels having yielded a total of £4,675,000. The industry has 

 greatly declined in recent years. The Eocene coal is a high-grade 

 bituminous variety. The total tonnage is estimated at 123,000,000 

 tons, of which 60,000,000 is extractable. The Miocene series contains 

 considerable quantities of brown and lignitic coal. 



H. R. B. 



The Squantum Tillite. By Robert W. Sayles. Bull. Mus. 



Comp. Anat., Harvard College, LVI, No. 2 (1914), 141-75, 



pis. 12. 

 For many years the origin of the Roxbury conglomerate has been a 

 subject of debate. As early as 1875 W. W. Dodge stated his belief in 

 the glacial origin of these beds; the writer has at last established this 

 view. The Roxbury series, comprising the Roxbury conglomerate, the 

 Squantum tillite, and the Cambridge slate, is of late Paleozoic age, 

 probably Permian. If there is no duplication of beds by folding, the 

 tillite is 600 feet thick. It is an unstratified mass of unassorted materials 

 much affected by dynamic movements, with the development of sec- 

 ondary cleavage. The rock fragments are of several kinds, variable in 

 size, and mostly angular or subangular in shape. Striated stones were 

 found at four localities. 



