1883.] 181 [Dale. 



W. B. Rogers. On the Newport -Conglomerate. Proceedings Boston 

 Sot;. N;it. Hist., Vol. xvin. Boston, 1875. 



T. Steriiy Hunt. Special Report on the Trap Dykes and Azoic Rocks 

 of S. E. Penna. Vol. I, p. 189, 190. Vol. E, Second Geo! 

 Survey of Penna. Harrisburg, 1878. 1 



The following list includes topographical maps and works of 



interest in connection with the geology of the Island although 



bearing less directly upon it. 



U. S. Coast Survey. Narraganset Bay from a Trigonometrical Survey. 

 Scale T -oJoo"* R e P ort of tne Supt. for 1870. Charts xx, 

 xxi. Washington, 1873. 

 " Topography of Narraganset Bay. Transfers 



from Plane Table Sheets. Sheet No. 21. Scale l ji 00 . 

 Washington, 1872. 

 " Coast Chart No. 13. Cuttyhunk to Block Island 



including Narraganset Bay. Scale 8 . } oo : Washington, 

 1876. 



Anon. An enquiry into the chymical character and properties of 

 that species of coal lately discovered at Rhode Island ; to- 

 gether with observations on the useful application of it to the 

 arts and manufactures of the Eastern States, pp. 21, Boston, 

 • 1808. 



Ch. Lyell. On the Probable Age and Origin of a bed of Plumbago and 

 Anthracite occurring in Mica-schist near Worcester, Mass. 

 Paper read May, 15, 1844. Quarterly Journal of the Geol. 

 Soc. of London, Vol. I. London, 1845. 



I. R. Barbour. Coal-beds in Rhode Island. Mount Hope Coal Mine. 

 (This pamphlet contains Dr. Jackson's special report on that 

 mine.) New York, 1852. 



G. L. Vose. On Distortion of Pebbles in Conglomerate. Mem. Bost. 

 Soc. Nat. Hist., Vol. I. Boston, 1866. 



Wm. P. Blake. The Plasticity of Pebbles and Rocks. Proceedings Am. 

 Association for the Advancement of Science. Salem, 1869. 



Society for the Encouragement of Domestic Industry. Report 

 on Coal and Iron in Rhode Island. Providence, 1869. 



T. S. Ridge way. (Geol. and M. E.) Memorial in Relation to the Coal- 

 field of R. I. Presented to the Gen. Assembly, Jan. 1868, 

 with supplement, Feb. 15, 1870. 12 pp. Providence, 1870. 



James D. Dana. Depression of Southern New England during the 

 Melting of the Glacier. Am. Journal of Science, Vol. x, in 

 Ser. (Narraganset Bay, p. 431.) 1875. 



iSee also an article by the same writer in the Proceedings Bost. Soc. Nat. Hist., 

 Vol. xiv. Boston, 1869. 



