INDEX TO CONTRIBUTORS. 385 



PAGB 



83. Remarks on deviations of the plumb line. 



85. Remarks on force and momentum. 



85. Remarks on the thickness of the earth's crust. 



92. Remarks on a Dakota calendar. 



95. Remarks on the appearance of Saturn's rings. 

 104. Remarks on the telephone of Mr. A. G-. Bell. 

 113. Remarks on the family Centrarchoides. 

 123. Remarks on Malfatti's problem. 

 123. Remarks on observations of meteors. 

 123. Remarks on RitQhie's liquid compass. 

 130. Remarks on the late B. F. Craig. 

 136. On standard measures of length. 

 185. On an optical salinometer. 



196. Announces the death of Professor Joseph Henry. 

 196. Remarks commemorative of Professor Henry. 



Dr. Hoffman (Surgeon U. S. A.). 



183. On the use of poisoned arrows by N. American Indians. 



E. S. HoLDEN. [.{See Appendix, ^. 16.) 



28. On the number of words used in speaking and writing. 

 51. On two drawings of nebulae made by Mr. L. Trouvelot. 

 82. Remarks on Major Farquhar's Report on Reservoirs 



for the Mississippi. 

 85. On the search for the supposed planet Vulcan. 

 95. Remarks on the appearance of Saturn's rings. 

 95. On reference catalogues of astronomical literature. 

 102. On the shadow of the ball of Saturn. 

 (18). Appendix No. VI. On the number of words used in 

 spelling and writing. 



Mr. Johnson (of )• 



196. Remarks commemorative of Prof. Henry. 



Prof D. S. Jordan (of Indianapolis, Ind.). 



113. Remarks ojq the family Centrarchoides. 



Mr. F. F. JuDD (of ). 



61. On the water-shed of the Adirondack region. 

 82. On the Adirondack water-shed. 



A. F. A. King. 



HI. On the conservative element in disease. 

 124. On the conservative influence of disease. 



