802 



INDEX. 



Refraction, Dispersion in Electric 

 Double, 747. 



Research Laboratory of Physical 

 Chemistry of the Massachusetts 

 Institute of Technology, Contri- 

 butions from, ;307. 



Resistance Measurements in Plati- 

 num Thermometry, 547-555, 

 788. 



Richards, T. W., A Revision of the 

 Atomic Weight of Strontium. 

 Second Paper. — The Analysis 

 of Strontic Chloride, 601-(J07, 

 745. 



Richards, T. W., and Lamb, A. B., 

 New Methods of determining 

 the Specific Heat and the Reac- 

 tion-heat of Liquids, 657-680, 

 747, 753. 



Richards, T. W., and Mark, K. L., 

 The Coefficient of Expansion of 

 Hydrogen and Carbon Dioxide 

 under Constant Pressure, 747. 



Richards, T. W., Forbes, G. S., and 

 Henderson, L. J., The Elimina- 

 tion of Thermometric Lag and 

 Accidental Loss of Heat in Cal- 

 orimetry, 747. 



Robinson, B. L., Diagnoses and 

 Notes relating to American Eu- 

 patorieae, 748. 



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

 Revision of the Genus Sabazia, 

 1-6; Revision of the Mexican 

 and Central American Species 

 of Hieracium, 14-24; Revision 

 of the Mexican and Central 

 American Species of Trixis, 

 6-14. 



Romans, Stature of the Ancient, 

 741. 



Rotch, A. L., On the First Observa- 

 tions obtained with Registration 

 Balloons in Amei'ica, 746 ; Report 

 of Librarian, 750. 



Royal Academy of Turin, Letter from, 

 746. 



Royal Hungarian Society, Letter 

 from, 747. 



Royal Prussian Academy of Sciences, 

 Medal commemorating the Bi- 

 centennial Jubilee of, 738. 



Rubidium, 448. 



Rumford Committee, Report of, 751 ; 

 Reports of Progress to, 753. 



Rumford Fund, 749 ; Appropriations 

 from the Income of, 754; Pam- 

 phlet relating to, 744 ; Papers 

 published by Aid of, 363, 437, 

 593, 627, 657, 717. 



Rumford Premium, 753, 795. 



Sabazia, Revision of the Genus, 1-6. 



Samuelson, Arnold, Resistance of the 

 Air and the Question of Flying, 

 747. 



Santa Barbara Crude Oil, Hydrocar- 

 bons in, 340-346. 



Saunders, F. A., Some Additions to 

 the Arc Spectra of tlie Alkali 

 Metals, 437-453, 739. 753. 



Scalar Function, The Extension to 

 Hyper Complex Number Systems 

 in General of the Quarternion, 

 747. 



Schwamb, Professor, INIechanical 

 Model to illustrate the Theory 

 of Rotary Polarization of Light, 

 devised by, 739. 



Semitic Museum, 744. 



Sexual Reproduction in the Muco- 

 rineae, 203-321. 



Sharpies, S. P., Swan Island in the 

 Caribbean Sea, with a List of 

 Plants found upon it, 745. 



Sieplein, O. J. See Mabery, C. F., 

 and Sieplein, O. J. 



Silver Oxide, Autocatalytic Decompo- 

 sition of, 717-733, 747, 753. 



Slag, Section of a Crater formed natu- 

 rally in, 744. 



Smyth, H. W., accepts Fellowship, 

 738. 



Sodium, 445. 



Sodium Vapor in the Visible and 

 Ultra-Violet Regions, Quantita- 

 tive Determination of the Anom- 

 alous Dispersion of, 363-396, 

 739. 



Specific Ileat and the Reaction-Heat 

 of Liquids, New Methods of De- 

 termining the, 657-680, 747, 753. 



Spectra of Gases at High Tempera- 

 tures, 738. 



Spectra of the Alkali Metals, Some 

 Additions to the Arc, 437-453, 

 739. 



Spectra of Titanium and Zinc, Rela- 

 tive Positions of the Arc and 

 Spark Lines of, 748. 



