es 
es 
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VOLUME 48, 
Morse, H. au — Studies on Fluorite: (IV.) The Kathodo-Luminescence of Fluorite. pp. 1-16. 
1 une, 1907. 
Gipeeis Fi Species of Senecio and Schoen lon from Mexico ; (II.) R 
B. L. — New or otherwise ‘Noteworthy Sp chiefly from Mexico; ; (IIL) Rosin 
son, B. L., and BARTLETT, — New Plants from i and Mexico cllecte 
chiefly by C. C. Deam; nad ) Pansat, M. L. — Diagnoses of New Spermatophytes fr 
p- 69- ges 
Bett, L. — Tie Philo sd of ‘Vihaminaiios. pp. 75-96. September, 1907. 
Pasaae, 3 . 0. — On the Determination of the etic Behavior of the Finely Sot Cees of 
an Electromagnet while a Ste: yd Current is being Petnnet in the Exciting Coil. pp. 
September, 1907. 
Suuppemagen, C. L. B. — ~ ae Factors for Cylindrical Iron Rods. pp. 183-256. 
Sep ast 
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Lewis, G. N. — Ou tlines of — ew System of Thermodynamic Chemistry. pp. 257-293. October, 
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Sanaer, C. R., ing Brack, 0. F. — The Quantitative Determination of Arsenic w the Gutzeit 
Method. pp. 295-324. 2 pl. pier 1907. 
SANGER, C. ty gee Buack, oO. F. — a Tntetninision of Arsenic in Urine. pp. 325-340. 
ctober, 1907, 25c. 
Ricuarps, T. W., and Wrepe, F,—The Transition Temperature ‘of Manganous Chloride : = 
New Fixed Point in Wiereeiciuidici, pp. 341-350. November, 
Kent, N. A., and Avery, A. H. — Difference in Ware Lang of Titanium AA 3900 and 3913 
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G. P., and Witson, J. H. — He Rivision ee the iii Weight of Lead. Preliminary 
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Pierce, G. W. — A Simple Method ee pent the Intensity of Sound. pp. 375-395. Febru- 
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TrowsutDce, 7. mete Magnetic Field and the Cathode Rays. pp. 397-404. Febru- 
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, L. — Note on Some Meteorological Uses of the Polariscope. pp- 405-412. March, 
gy 15c. 
Parker, G C) ry Reactions of Amphioxus, pp. 413-455. April, 1908. 45c. 
apie W. P. — On baa cdatage dvayvepioes in Greek Tragedy. pp. 457-471. May, 1908. 
W., and Rowz, A. W.— A New Method for the Determination of the Specific 
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Newsatt, 8. H. — Pisistratus and His Edition of Homer. pp. 489-510. June, 1908, 45c. 
Trowsriwer, J.— Positive Rays. pp. 511-517. June, 1908. 1 
Ricuarps, T. W., and Maraews, H. — Concerning the Use of Electrical Hosting ta Bracthine? 
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Records of Meetings; Bi ASA Notice ; Officers and C ; List of Fellows and 
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(Continued on page 2 of Cover.) 
