90 BIBLIOGRAPHY 
545c Stanton (Timothy W.), Turner (H. W.) and. Notes on the geology 
of the Coast range of California. 
Am. Geol., vol. xiv, pp. 92-98. 
See Turner (H. W.) and Stanton (T. W.), No. 566. 
546 Stevenson (John J.). Origin of the Pennsylvania anthracite. 
Geol. Soc. Am., Bull., vol. v, pp. 39-70, pi. 2. 
Abstract; Am. Nat., vol. xxviii, pp. 160-161. 
Describes the coal areas of Pennsylvania and discusses the extent 
of deformation of the coal basins and the causes of variation in the 
volatile combustibles of Pennsylvania coals. Discusses the evidences 
of metamorphism in the formation of coal, reviews the different the- 
ories, and gives the author's hypothesis as to the origin of coal beds. 
546a Use of the name " Catskill." 
Abstract: Am. Assoc. Adv. Sci., Proc, vol. xlii, p. 171 (£ p.). 
547 Storms (W. H.). Ancient channel system of Calaveras County 
[Cal.]. 
Cal. State Mg. Bureau, 12th Rept., pp. 482-492, with two maps and 
cross sections. 
Describes the character and occurrence of the ancient river channels 
of this region. 
548 Stose (George W.). A specimen of Ceratiocaris acuminata Hall 
from the Water Lime of Buffalo, N. Y. 
Bost. Soc. Nat. Hist., Proc, vol. xxvi, pp. 369-371. 
Gives a description of the specimen. 
548a Streeruwitz (W. H. von). Trans-Pecos, Texas. 
Abstract: Am. Nat., vol. xxviii, p. 263. 
Noticed in Bibliography and Index for 1892 and 1893. 
549 Tarr (Balph S.). The origin of drumlins. 
Am. Geol., vol. xiii, pp. 393-407. 
Reviews the theories advanced to explain the formation of drum- 
lins. Describes their distribution and discusses the evidences as to 
their mode of formation. Concludes that they may have been formed 
by glacial erosion. 
550 Lake Cayuga a rock basin. 
Geol. Soc. Am., Bull., vol. v, pp. 339-356, pi. 14. 
Abstracts: Am. Geol., vol. xiii, p. 216 (i p.); Am. Nat., vol. xxviii, 
p. 596 a P-). 
Describes the physical features of the region and reviews opinions 
of previous writers. Discusses the bearing of observations made and 
gives the author's summary. Includes a list of 21 papers on the geol- 
ogy of the Finger Lake region. 
551 Lake Cayuga a rock basin. 
Am. Geol., vol. xiv, pp. 194-195 (correspondence). 
Refers to certain comments on a previous paper on the same subject. 
