178 TRANSACTIONS OF THE [Mar. 27 
‘“‘The Ancient Lakes of Western America, Their Deposits and Drain- 
age.” —Hayden’s U. 8. Geol. Surv. (Wyoming), 1870, p, 329, 
‘¢ Ancient Lakes of Western America.”—Proc. N. Y. Lyc. Nat. Hist., 
Vol. I. (1870), p. 25. 
‘‘ Geological Survey of Ohio.”—Report of Progress for 1870, Part L. ; 
Structure of the Lower Coal Measures in Northeastern Ohio, pp. 1-53, 
4 charts. 
‘«On the Red Color of Sedimentary Rocks Barren of Fossils.” —Proe. 
N. Y. Lyc. Nat. Hist., Vol. I. (1870), p. 36. 
‘Geological Survey of Ohio.”—Report of Progress for 1871, Colum- 
bus, Ohio, pp. 1-9. 
‘*Geology of Ohio.”—Gray and Walling’s Atlas of Ohio, 1872, with 
geological map. 
«‘ Geological Survey of Ohio.”—Vol. I., Part I.: Historical Sketch, 
Physical Geology, Geological Relations and Geological Structure of Ohio, 
pp. 1-167. (1873.) 
“*Geological Survey of Ohio.”—Vol. I., Part I (1873), Geology of 
Cuyahoga County, pp. 171-200, one map. 
*‘ Geological Survey of Ohio.”—Vol.I., Part I (1873), Geology of 
Summit County, pp. 201-222, one map, one plate. 
“‘ Geological Survey of Ohio.’’—Vol. I., Part I1., Paleontology (1873), 
Preface, pp. 1-8. 
“‘Cycles of Deposition in American Sedimentary Rocks.”—Proce. 
Amer. Assoc. Adv. Sci., Vol. XXII. (1873), p. 185. 
‘«Salina Group of the Upper Silurian.”—Proc. N. Y. Lyc. Nat. Hist., 
Second Series (1873), p. 11. 
**Geological Survey of Ohio.”—Vol. JI., Part I. (1874), Preface, Sur- 
face Geology, the Carboniferous System, pp. 1-9, 1-180, plate one, maps, 
four. The chapter on the Surface Geology was reprinted with four maps. 
‘¢On the Structure and Origin of the Great Lakes.”—Proc. N. Y. Lye. 
Nat. Hist., Second Series, (1874), p. 136. 
** Geological Survey of Ohio.”—Vol, II., Part I. (1874), Geology of 
Erie County and the Islands, pp. 183-205, one map. 
‘¢Geological Survey of Ohio.”—Vol. II., Part. I. (1874), Geology of 
Lorain County, pp. 206-224, 
‘“‘ Parallelism of Coal Seams.”—Amer. Jour, Sci., iii., Vol. VII. (1874), 
p. 367. 
‘‘On the Lignites and Plant Beds of Western America.”—Amer. 
Jour. Sci., iii., Vol. VII. (1874), p. 399. 
‘‘Geological Report, accompanying Report of the Exploring Expedi- 
tion from Santa Fé, N. M., to the Junction of the Grand and the Green 
