43° RECENT P UBLICA TIONS 



Part II, Papers Chiefly of a Theoretic Nature ; Part III, Economic Geol- 

 ogy; Part IV, Hydrography. Washington, 1899. 



— Walcott, Hon. Charles D. Nineteenth Annual Report of the Director of 

 the U. S. Geological Survey to the Secretary of the Interior, 1897-8. Extract, 

 Part I. 



Pre-Cambrian Fossiliferous Remains. Bulletin of the Geological Society 

 of America, Vol. X, pp. 199-244, Rochester, April 1899. 



The United States Forest Reserves. Reprinted from Appleton's Popular 

 Science Monthly for February 1898. 



— White, I. C. Origin of Grahamite. Bull. Geol. Society of America, Vol. X, pp. 

 277-284, PI. 29. Rochester, April 1899. 



100*0 



