INDEX. 



803 



Sperinatopliytes, Diagnoses and Syn- 

 onymy of .Mexican and Central 

 American, 28-52, 748. 



Standing Committees, appointed, 756. 



Standing Votes, 794. 



Starratt, S. A. See Parker, G. II. 

 and Starratt, S. A. 



Statics, A Problem in, and its liela- 

 tion to Certain Algebraic Invari- 

 ants, 467-484. 



Stature of the Ancient Romans, 741. 



Statutes, 785; Amendment of, 755. 



Storrow, C. S., Notice of, 769. 



Story, VV. E., A New General Theory 

 of Errors, 165-202. 



Strontic Chloride, The Analysis of, 

 601-607. 



Strontium, Revision of the Atomic 

 Weight of, 601-607. 



Swan Island in the CariV)bean Sea, 

 with a List of Plants found u})on 

 it, 745. 



Taber, H., The P^xtension to Hyper 



Complex Number Systems in 



General of the Quarternion Scalar 



Function, 747. 

 Thermodvnamic Cyclic Analysis, A 



IHl Plane for, 627-655, 744. 

 Thermometers, A Manometric Device 



for Air, 539. 545, 738. 

 Thermometry, Notes on Resistance 



Measurements in Platinum, 547- 



555, 738. 

 Thomson Thermo-Electric Effect in 



Soft Iron, Measurement of, 744. 

 Thwing, C. B., Grant from the Income 



of the Rumford Fund, 752. 

 Titanium, The Relative Positions of 



the Arc and Spark Lines of the 



Spectra of, 748. 

 Treasurer, Report of, 748. 

 Trixis, Revision of the Mexica.n and 



Central American Species of, 



6-14. 

 Trowbridge, J., Grant from the In- 

 come of the Rumford Fund, 755, 



752; Spectra of (iases at High 



Temperatures, 738. 



Uralite, 737. 



Vapors, Surface Tension at the Bound- 

 ary between Liquids and, 758. 



Vaseline, Composition of Commercial, 

 361-362. 



Venezuela, New Plants from ' the 

 Islands of Margarita and Coclie, 

 681-698, 745. 



Villari, P., accepts membership, 

 738. 



Viscosity of Air, 609-626, 744. 



Warren (C. 'SI.) Committee, Report 

 of, 753. 



Warren (C. ]\I.) Fund, 750; Appro- 

 priation from the Income of, 

 755 ; Papers published by Aid 

 of, 321. 



Williston, Samuel, elected Resident 

 Fellow, 757. 



Wind, C. II., Letter from, 747. 



Wireless Telegraphy, Resonance in, 

 738. 



Wood R. W , The Achromatization of 

 Approximately Monochromatic 

 Interference Fringes by a highly 

 Dispersive Medium, and the Con- 

 sequent Increase in the Allow- 

 able Path-Difference, 593-600, 

 739, 753; (Jrant from the Income 

 of the Rumford Fund to, 751; 

 A Quantitative Determination of 

 the Anomalous Dispersion of 

 Sodium Vapor in the Visible and 

 Ultra-Violet Regions, 303-396, 

 739, 753. 



Zexmenia, Revision of the Genus, 

 748. 



Zinc. The Relative Positions of the 

 Arc and Spark Lines of the 

 Spectra of Titanium and, 748. 



Zoological Laboratory of the Museum 

 of Comparative Zoology at 

 Harvard College, E. L. Mark, 

 Director, Contributions from, 59, 

 455. 



