AuGust 6, 1897. ] 
Bureau in Explorations of the Upper Air. By 
Professor C. F. Marvin, U.S. Weather Bureau, 
Washington, D: C. 
13. Experiments upon the Acetylene-Oxygen 
Standard of Light. By Dr. Clayton H. Sharp, 
Cornell Uniy., Ithaca, N. Y. 
14. Are Spectra. By Professor Arthur L. 
Foley, Univ. of Indiana, Bloomington, Indiana. 
15. On the Brightness of Pigmented Surfaces 
under Various Sources of Illumination. By 
Professor Frank P. Whitman, Adelbert College, 
Cleveland, Ohio. 
16. Note on the Construction of a Sensitive 
Radiometer. By Professor Ernest Fox Nichols, 
Colgate Univ., Hamilton, N. Y. 
17. Photographs of Manometric Flames. By 
Dr. Edward L. Nichols, Cornell Univ., Ithaca, 
N. Y., and Professor Ernest Merritt, Ithaca, 
WL WG 
18. The Discharge of Electrified Bodies by 
X-rays. By Dr. C. D. Child, Cornell Univ., 
Ithaca, N. Y. 
19. A Final Determination of the Relative 
Lengths of the Imperial Yard of Great Britain 
and the Meter of the Archives. By Professor 
William A. Rogers, Colby Univ., Waterville, 
Me. 
20. The Electric Conductivity of certain Speci- 
mens of sheet Glass, with reference to their 
Fitness for Use in Static Generators. By Pro- 
fessor Dayton C. Miller, Case School of Applied 
Science, Cleveland Ohio. 
21. Graphical Treatment of Alternating Cur- 
rents in Branch Circuits in case of Variable 
Frequency. By Professor H. T. Eddy, Min- 
neapolis, Minn. 
22. On Simple Non-Alternating Currents. By 
Professor Alexander Macfarlane, Lehigh Uni- 
versity, South Bethlehem, Pa. 
23. Exhibition of Instruments for determin- 
ing the Frequency of an Alternating Current. 
By Professor George 8. Moler, Ithaca, N. Y., 
and Dr. Frederick Bedell, Cornell University, 
Ithaca, N. Y. 
24, The predetermination of Transformer 
Regulation. By Dr. F. Bedell, Cornell Uni- 
versity, Ithaca, N. Y.; Professor R. E. Chandler, 
Salem, Va., and Mr. R. H. Sherwood, Jr., 
_ Brooklyn, N. Y. 
25. The effect of Pressure on the Wayve- 
SCIENCE. 
219 
lengths of the lines of the Emission Spectra of 
the Elements. By Dr. W. J. Humphreys, 
Johns Hopkins University, Baltimore, Md. 
96. A New Form of Coal Calorimeter. By 
Charles L. Norton, Massachusetts Institute of 
Technology, Boston, Mass. 
27. Notes on the Recent History of Musical 
Pitch in the United States. By Professor Chas. 
R. Cross, Massachusetts Institute of Technology, 
Boston, Mass. 
28. A New Form of Harmonic Analyzer. By 
Dr. Frank A. Laws, Massachusetts Institute of 
Technology, Boston, Mass. 
29. A Comparison of Rowland’s Thermome- 
ters with the Paris Hydrogen Scale, and the 
Corresponding Correction to his Value of the 
Mechanical Equivalent of Heat. By Dr. W. 
S. Day, Johns Hopkins University, Baltimore, 
Md. 
30. The Determination of the Surface Tension 
of Water, and of Certain Aqueous Solutions, by 
means of the Method of Ripples. By Dr. N. 
Ernest Dorsey, Johns Hopkins University, 
Baltimore, Md. 
31. The Series of International Cloud Obser- 
vations made by the U. S. Weather Bureau, and 
their relation to Meteorological Problems. By 
Professor Frank H. Bigelow, U. 8. Weather 
Bureau, Washington, D. C. 
32. The Effects of Tension and Quality of 
the Metal upon the Changes in Length pro- 
duced in Iron Wires by Magnetization. By 
Byron Briggs Brackett, Johns Hopkins Univer- 
sity, Baltimore, Md. 
33. Measurement of Small Gaseous Pressures. 
By Charles Brush. 
FREDERICK BEDELL, 
Secretary of the Section. 
CORNELL UNIVERSITY. 
SECTION C.—CHEMISTRY. 
Address of the Vice-President: Expert Tes- 
timony. By Professor W. P. Mason, Rens- 
selaer Polytechnic Inst., Troy, N. Y. 
The meetings of the Section will be held in 
conjunction with those of the American Chemical 
Society. 
The papers of the Section will be divided into 
sub-heads with following committee in charge: 
A. B. Prescott, Organic Chemistry; W. A. 
