584 



INDEX. 



Robinson, B. L., New or Otherwise 

 Noteworthy Spermatopliytes, 

 Chiefly from Mexico, 21-48. 



Robinson, B. L., and Bartlett, H. H., 

 New Plants from Guatemala and 

 Mexico collected Chiefly by C. C. 

 Deam, 48-60. 



Rods, Cylindrical Iron, Demagnetiz- 

 ing Factors for, 183. 



Rotch, A. L., Report of Librarian, 

 537. 



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

 and Rowe, A. W. 



Royal Friedrich-Wilhelm University 

 of Berlin. See First Chemical 

 Institute of the Royal Friedrich- 

 Wilhelm University of Berlin. 



Rumford Committee, Report of, 538; 

 Reports of Progress to, 538. 



Rumford Fund, 535; Appropriations 

 from the Income of, 534, 542; 

 Papers published by Aid of, 1, 75, 

 341, .351, 405, 473, 511. 



Rumford Premium, 578; Presenta- 

 tion of. 534. 



Russell, I. C, 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, 544. 



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

 Quantitative Determination of 

 Arsenic by the Gutzeit Method, 

 295-324; The Determination of 

 Arsenic in Urine, 325-340. 



Schoenocaulon from Mexico, New- 

 Species of, 17. 



Senecio and Schoenocaulon from 

 Mexico, New Species of, 17. 



Sensory Reactions of Amphioxus, 

 The, 413, 533. 



Seymour, T. D., Death of, 530. 



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

 netizing Factors for Cylindrical 

 Iron Rods, 183-256. 



Solutions, A New Method of Deter- 

 mining the Specific Heats of, 

 473, 544. 



Sound, Absolute Measurements of, 

 544. 



Sound, A Simple Method of Measur- 

 ing the Intensity of, 375, 531. 



Specific Heats of Solutions, A New 

 Method of Determining the, 473, 

 544. 



Spectra, Arc, Some Effects of Heavy 

 Pressure on, 530. 



Spermatogenesis of Vespa maculata 

 Linn., Maturation Stages in the, 

 69. 



Spermatopliytes, Chiefly from Mexico, 

 New and Otherwise Noteworthy, 

 21. 



Spermatopliytes from Mexico, Diag- 

 noses of New, 61. 



Standing Committees, appointed, 543; 

 List of, 557. 



Standing Votes, 567. 



Statutes, 567. 



Steam, Notes on Superheated, 533. 



Stedman, E. C, Death of, 533. 



Temperature, Transition, of Manga- 

 nous Chloride, 341. 



Temperature Gradient, The Internal, 

 in Common Materials, Measure- 

 ments of, 532. 



Temperature Gradient, The Variation 

 of the Thermomagnetic Effect 

 in Soft Iron with Strength of the 

 Magnetic Field and, 532, 544. 



Thaxter, Roland, Contributions 

 toward a Monograph of the La- 

 boulbeniaceae. Part II., 534. 



Thermodynamic Chemistry, Outlines 

 of a New System of, 257. 



Thermomagnetic Effect in Soft Iron, 

 The Variation of the, with 

 Strength of the Magnetic Field 

 and Temperature Gradient, 532, 

 544. 



Thermometry, A New Fixed Point 

 in, 341. 



Thwing, C. B., Measurements of the 

 Internal Temperature Gradient 

 in Common Materials, 532. 



Titanium XX 3900 and 3913 in Arc 

 and Spark, Difference in Wave- 

 Lengths of, 351, 528. 



