weeks.] PALEONTOLOGY, PETROLOGY, AND MINERALOGY. 1896. 89 
w. 
705 Wadsworth (M. B.). [Review of "Manual of lithology: Treat- 
ment of the principles of the science with special reference 
to megascopic analysis, 1 ' by Edward H. Williams, jr. 
Science, new ser., vol. iv, pp. 361-363, 1896. 
70C Walcott (Charles 1).). Report of the Director [U. S. Geological 
Survey] for the fiscal year ending June 30, 1895. 
U. S. Geol. Surv., 16th Ann. Rept., Pt. I, pp. 5-130, 1896. 
Describes the work of the geologic, topographic, and paleontologic 
divisions of the United States Geological Survey. 
707 Report of the Director [U. S. Geological Survey] for the fiscal 
year ending June 30, 189G. 
II. S. Geol. Surv., 17th Ann. Kept., Pt. I, pp. 5-200, 1896. 
Describes the work of the geologic, topographic, and paleontologic 
divisions of the United States Geological Survey, and gives a summary 
of the results obtained by the different held parties. 
708 The Cambrian rocks of Pennsylvania. 
U. S. Geol. Surv., Bull., No. 134, 43 pp., 15 pis., 1896. 
Describes the character and distribution of the Cambrian rocks of 
Pennsylvania and gives lists of fossils found at various localities. 
70!) Fossil jelly fishes from the Middle Cambrian terrane. 
U. S. Nat. Mus., Proc, vol. xviii, pp. 611-614, pis. 31-32, 1896. 
Describes two new genera and three new species from the Coosa Valley, 
Alabama. 
710 Walker (A. E.). Description of the railway cutting [Ontario]. 
Hamilton Assoc, Jour, and Proc, No. 12, pp. 147-150, 1896. 
Comprises notes on glacial deposits near Hamilton, Ontario. 
711 Walker (Francis A.). Memoir of William Barton Kogers, 1804- 
1882. 
Nat. Acad. SeL, Biog. Mem., vol. iii, pp. 3-13, 1895. 
712 Walker (T. L.). Notes on sperrylite. 
Am. Jour. Sci., 4th ser., vol. i, pp. 110-112, 1896. 
Describes the mineralogic and chemical characters of material from 
the Vermilion mine, Algoma, Ontario. 
713 Ward (Lester F.). -Some analogies in the Lower Cretaceous of 
Europe and America. 
U. S. Geol. Surv., 16th Ann. Kept., Pt. I, pp. 469-540, pis. xcvii-cvii, 
ligs. 67-69, 1896. 
Compares the lithologic and faunal characters of the Potomac and 
Wealden formations and describes the Scaly clays of Italy and the 
Jurassic and Cretaceous of Portugal. 
714 [Review of "The Wealden fiora," by A. C. Seward. J 
Science, new ser., vol. iii, pp. 869-876, 1896. 
