584 



INDEX. 



Robinson, B. L., New or Otherwise 

 N oteworl hy Spermatophj 

 Chiefly from Mexico, 21- I s . 



Robinson, B. 1... and Bartlett, II. H., 

 New Plants from Guatemala and 

 Mexico collected Chiefly by C. C. 

 Deam, is 60. 



Rods. Cylindrical Iron, Demagnetiz- 

 ing Factors for, 183. 



Roteh, A. L., Report of Librarian, 

 537. 



Rowe, A. W. See Richards, T. W., 

 and Rowe, A. W. 



Royal Friedricli-Wilhclm University 

 of Berlin. See First Chemical 

 Institute of the Royal Friedrich- 

 Wilhelm University of Berlin. 



Rumford Committee, Report of, 538; 

 Reports of Progress to, 53S. 



Rumford Fund, .">;;.") ; Appropriations 

 from the Income of, 534. ~>\\1; 

 Papers published by Aid of, I, 75, 

 341, 351, 105, 173,511. 



Rumford Premium, 57s ; Presenta- 

 tion of, 534. 



Russell. I. a, Death of, 533. 



St. Gaudens, A.. Death of, 533. 

 St. Murat, I.. Letter from, 527. 

 Salts Melting below 600° C, The 



Latent Heat of Fusion and the 



Specific Heat in the Solid and 

 Liquid State of, ~>14. 



Sanger, C. R., and Black, 0. F., The 

 Quantitative Determination of 

 Arsenic by the < rutzeit Method, 

 295 324; The Determination of 

 Arsenic in Trine. 325-340. 



Schoenocaulon from .Mexico. New 

 Species of, 17. 



ecio and Schoenocaulon from 



Mexico. New Species of, 17. 



- osory Reactions of Amphioxus, 



The. ii.;. 533. 



Seymour, T. !>.. heath of, 530. 



Shuddemagen, C. L. B., The Demag- 

 netizing Factors for Cylindrical 

 Iron Rods, 183-256. 



- lutions, A New Method of Deter- 



mining tl Spei ific Beats of, 

 17:;. 544. 



Sound. Absolute Measurements of, 

 544. 



Sound. A simple Method of Measur- 

 ing the Intensity of, 375, 531. 



spec, lie Beats of Solutions, A . v 

 Method of I tetermining the, 173, 

 544. 



Spectra, Arc. Some Effects of Heavy 

 Pressure on, 530. 



Spermatogenesis of Yespa macul 

 Linn., Maturation Stages in the, 

 69. 



Spennatophytes, Chiefly from Mexico, 

 New and Otherwise Noteworthy, 

 21. 



Spennatophytes from Mexico, Diag- 

 noses of New, 61. 



Standing Committees, appointed. 543; 

 List of, 557. 



Standing Votes, 567. 



Stat utes, oli7. 



Steam, Notes on Superheated. 533. 



Stedman, E. C, Death of, 533. 



Temperature, Transition, of Manga- 

 qous Chloride, 341. 



Temperature Gradient, The Internal. 



in Common Materials. Measure- 

 ments of, 532. 



Temperature Gradient, The Variation 

 of the Thermomagnetic Effert 

 in Soft Iron with Strength of the 

 Magnetic Field and. .">:!2. 544. 



Thaxter, Roland. Contributions 

 toward a Monograph of the La- 

 boulbeniaceae. Part 11.. 53 I. 



Thermodynamic chemistry. Outlines 



of a New System of, 257. 



Thermomagnetic Effect in Soft fron, 

 The Variation of the, with 

 Strength of the Magnetic field 

 and Temperature Gradient, ">">-. 

 544. 



Thermometry, A New Fixed Point 

 in. 341. 



Thwing, C. |;.. Measurements of the 

 Internal Temperature Gradient 



in < 'otnmon Materials. 532- 

 Titanium XX 3900 and 3913 in Arc 



and spark. Difference in Wave- 

 Lengths of, 351, 528. 



