752 



INDEX. 



Waltenhofen Phenomenon in 

 Finely Divided Cores, 539. 



Infinitesimal Properties of Lines in S4 

 with Applications to Circles in S3, 

 343, 684. 



Instituts Solvay, Letter from, 683. 



International Botanical Congress 

 (third), 714. 



International Congress of Applied 

 Chemistry (eighth), 683, 720. 



International Congress of Geography 

 (tenth), 683. 



International Congress of Orientalists 

 (sixteenth), 726. 



International Congress of Philosophy 

 (fourth), 717. 



International Exposition of Industry 

 and Labor, 683. 



International Horticultural Exposi- 

 tions, 683. 



Iron, Anomalous Magnetization in,735. 



Iron, Meteoric, The Atomic Weight of, 

 716. 



Iron, The Resistivity of Hardened 

 Cast, as a Measure of its Temper 

 and of its Fitness for use in Per- 

 manent Magnets, 183. 



Iron, A Revision of the Atomic Weight 

 of, 716. 



Iron, Soft, On the Electromagnetic 

 and the Thermomagnetic Trans- 

 verse and Longitudinal Effects in, 

 623, 719. 



Iron, very pure Soft, The Magnetic 

 Permeabilities at Low Excita- 

 tions of two Kinds of, 205. 



Iron and Steel Rings, The Magnitude 

 of an Error which sometimes 

 affects the Results of Magnetic 

 Tests upon, 83. 



Iron Rings, Soft, On the von Walten- 

 hofen Effect in, 735. 



Jagger, T. A., Jr., An Investigation of 

 the Cartago Earthquake in Costa 

 Rica, 716. 



Jefferson Physical Laboratory, Contri- 

 butions from, 83, 95, 183, 205, 

 291, 323, 539, 587, 633, 669. 



Jeffrey, E. C, The Nature of Some 

 Supposed Algal Coals, 271. 



Johnson, D. W., The Supposed Recent 

 Subsidence of the Massachusetts 

 Coast, 686. 



Kennelly, A. E., Vector-Diagrams of 

 Oscillatiag-Current Circuits, 371, 

 686. 



Kmnicutt, L. P., Death of, 717. 



Kirchhoff's Law, Note on, 95. 



Lane, A. C, elected Resident Fellow, 

 684; accepts Fellowship, 684. 



Larmian, C. R., Buddhaghosa's Way 

 of Purity analysed: first third, 

 Morality, 716. 



Lea, H. C, Meeting in memory of, 

 717. 



Lewis, G. N., On Four-Dimensional 

 Vector Analysis, and its Applica- 

 tion in Electrical Theory, 173. 



Librarian, Report of, 728. 



Library, Appropriation for, 732. 



Lines, Infinitesimal Properties of, in 

 S4 with Applications to Circles in 

 S3, 343, 684. 



Lombard, R. H. See Thompson, M. 

 de K., and Lombard, R. H. 



Longitudinal and Transverse Effects 

 in Soft Iron, On the Electromag- 

 netic and the Thermomagnetic, 

 623, 719. 



Lowell, F. C, Death of, 720. 



Lowell, Percival, Investigations of 

 Halley's Comet at Flagstaff Ob- 

 servatory, 684. 



Lyon, D. G., Harvard Excavations at 

 Samaria in 1910, 725. 



Maclaurin, R. C, elected Resident 

 Fellow, 715; accepts Fellowship, 

 717. 



Magnetic Lag, The Effects of Sudden 

 Changes in Inductances of Elec- 

 tric Circuits as Illustrative of the 

 Absence of, and of the von Wal- 

 tenhofen Phenomenon in Finely 

 Divided Cores, 539. 



Magnetic Permeabilities, The, at Low 

 Excitations of two Kinds of very 

 Pure Soft Iron, 205. 



