SOME PHYSICAL ASPECTS O F T H E N E W GAS, ARGON.
477
This method has been used for some months in the laboratory of the New Jersey Zinc and Iron Co., with very satisfactory results. T h e following table shows how this compares with the ordinary gravimetric methods. Material Analyzed.
-Zinc Gravimetric.
................ 22.05 ................ 26.58 Brass. .................. 5.06 N. J. ore ................ 2 2 . 5 0 .................. 30.75 Blende ................. 38.28 Willemite.. ............ 55.55 Residuum .............. 4.60 .............. 4.29 .............. 9.15 Tailings ................ 2 . 1 2 Middles ................ 15.15
..
N. J . ore "
1'
"
I (
1
Volumetric. 22.11
26.48 5.12
22.47 30.82 38.18 55.68 4.79 4.44 8.99 2.05
15.24
-ManganeseGravimetric. Volumetric.
7.58 N. D. 0. N. D.
7.38 11.98 0. 11.55
7.54 0. I
0. 12.23 N. D. , I
6.04 9.24
j
0. 12.30 I I .99 11.61 6.00 9.14
I n conclusion I wish to express my thanks to Mr. D. A . Van Ingen, who has done much of the experimental work necessary in testing the method.
S O M E PHYSICAL ASPECTS OF THE N E W a A S , ARGON. T H E IOEAL THERMOllETRICAL SUBSTANCE FOR HIGH TEMPERATURES. BY W. R. QUINAN. Received March 31, 1895.
T
HE discovery, by Lord Rayleigh and Professor Ramsay, of
a new gaseous constituent of the atmosphere, has a manysided bearing upon science and excites the interest of the whole world. While there may be mooted questions yet to be decided in regard to the elementary constitution of argon, certain extraordinary conclusions seem to have been reached. I n the sense of the kinetic theory, it is a monatomic gas; that is, if heat be applied to it, all or very nearly all of this heat will be expended in dynamic energy. T h e kinetic theory, whatever may be its shortcomings, is certainly the most intelligible hypothesis now at our command, both to explain and to expound the ideal behavior of matter in its simplest form-the gaseous. T h e behavior, it must be remembered, is independent of the theory. It is the fruit of experimental research.
478
W. I
