408 



INDEX. 



Richards, T. W., and Parker, H. G., 

 On the Occlusion of Baric 

 Chloride by Baric Sulphate, 

 67-77. 



Richards, T. W., and Rogers, E. F., 

 A Revision of the Atomic 

 Weight of Zinc: Analysis 

 of Zincic Bromide, 158-180. 



Robinson, B. L., and Greenman, J. 

 L., Contributions from the 

 Gray Herbarium of Harvard 

 University, New Series, No. 

 9, 345. 



Rogers, E. F. 5ee Richards, T. W. , 

 and Rogers, E. F. 



Rumford Committee, Report of, 

 341. 



Rumford, Count, letters of, 346. 



Rumford Fund, papers published 

 by aid of, 193, 218, 234, 245, 

 271. 



Romford Medal, award of, 341. 



S. 



Sambucus, ^cidium on, 264. 

 Shore outlines, 315. 



profiles, 312. 

 Silver, melting point of, 218. 

 Starfish, embryology of, 333. 

 Statutes and Standing Votes, 389. 

 Story, W. E., On New Methods 



of representing Mathematical 



Surfaces, 346. 

 Sulphur Petroleums, Composition 



of, 1. 



Taber, H., Note on the Automorphic 

 Linear Transformation of a 

 Bilinear Form, 181-192. 

 On the Group of Real Linear 

 Transformations whose In- 

 variant is an Alternate Bilin- 

 ear Form, 336, 337. 

 Transformation of the Group 

 whose Invariant is a certain 

 linear Complex, 349. 



Tangent bars, 341. 



Tetrabrombenzol, symmetrical, 133. 

 unsymmetrical, 132. 



Tetrabromdinitrobenzol, action of 

 sodic ethylate on, 134. 



Tetrabromphenylene diamine, 156. 



Tetrammon-tricupriammouium io- 

 dide, 83. 



Thaxter, R., On Laboulbeniacese, 

 345. 



Thermo-electric Interpolation For- 

 mulaB, 193. 



Toluol, 34, 59. 



Toy, C. H., Palestine in the Fif- 

 teenth Century B. C, 347. 



Treasurer, Report of, 339. 



Tribrombenzol, symmetrical, 134. 



Tribromchlorbenzol, unsymmetri- 

 cal, 133. 



Tribronidinitrobenzol, reduction of, 

 144. 



Tribromiodbenzol, action of fuming 

 nitric acid on, 131. 

 behavior of, 128. 



Tribrommetaphenylene diamine, 

 140. 



Trowbridge, J., experiments with 

 the cathode rays, 349, 350. 



w. 



Warren (C. M.) Committee, Report 



of, 342. 

 Fund, aid from, 1. 

 West, P. C. F. See Agassiz, A., and 



West, P. C. F. 

 Willson, R. W. See Peirce, B. O., 



and Willson, R. W. 



Xylols, 35, 59. 



X. 



z. 



Zincic Bromide. Analysis of, 158. 

 Specific gravity of, 162. 



Zoological Laboratory of the Mu- 

 seum of Comparative Zoology 

 at Harvard College, Contri- 

 bution from, 333. 



