INDEX TO CONTRIBUTORS. 391 



General J. R. Warren (of U. S. A. Engineer Corps). 



PAGE 



21. Remarks on changes in drainage system of North 

 '■ America. 



J. C. Welling. 



26. Remarks on the distribution of mammals. 



28. Remarks on the method of estimating vocabularies. 



85. Remarks on silver currency. 

 110. Remarks on the use of certain terms. 

 199. Remarks on the evolution of language. 

 203. Address on the life and character of Joseph Henry. 

 372. Remarks commemorative of Professor Henry. 



C. A. White. 



110. Remarks on the use of certain terms. 



181. Remarks on the North American Indians. 



181. On the evolution of the North American Unionida. 



185. Remarks on copper drifts in Iowa and Missouri. 



187. Remarks on fossil plants. 



187. Remarks on the Great Salt Lake. 



188. Remarks on Great Salt Lake. 



189. Remarks on the arid region of the United Slates. 



190. On asymmetry in the form of the human cranium. 



Dr. A. Woeikoff (of St. Petersburg, Russia). 



34. On Col. Tillo's determination of the elevations of the 



Caspian and Aral Seas. 



35. On meteorological observations in Peru. 



J. J. Woodward. 



20. On the similarity between red blood-corpuscles in 



mammals. 

 22. Remarks on the human ear. 



25. On the modern microscope, and Nobert's lines, [stains. 

 41. Explanatory note in regard to the diagnosis of blood- 

 60. On diffraction phenomena in the field of the microscope, 

 60. Remarks on the frequency of half vision. 

 62. On the microscopical structure of wool. 

 64. Remarks on a meteorological instrument. 

 64. On the Papyrus Ebers, written 1552 B. C. 

 69. On the markings on Navicula Rhomboides. 



