1988.) 129 
400.  Oompletion of Correlation. 
i 2 
In Coulomb's formula of torsional elasticity (Note 162), if we substitute 
m 
for f, g? = UW (29) and 
gi = 0, = 2%, ‘ 74. 
The investigations of Weber, Kohlrausch, Thomson, Maxwell, Ayr- 
ton, and Ferny have shown that 
Oy == Ne 75. 
Notes 16, 90-3, 97 give various ways of coérdinating chemical and cos- 
mical actions with luminous undulation, so as to get the equation 
VY, 76. 
In throwing a ball into the air, the thermal equivalent of projectile force 
is equivalent to the product of the mass by the sum of the retarding resist- 
ances. In solar superficial radiation, the gravitating reaction is exhausted 
ina half rotation, By a simple extension of these principles we have de- 
duced equations 73-6, which, when combined, give a complete practical 
verification of the general kinetic correlation (24). 
401. Phyllotaay and Harmony of Absorption Bands. 
Langley’s observations with the spectro-bolometer, at Allegheny Obser- 
vatory and on the summit of Mt. Whitney, show four remarkable absorp- 
tion bands in the infra-red portion of the solar spectrum, at 0.494, 1.14, 
{.437 and 1.#83. These wave-lengths are very nearly proportional to the 
numbers’4, 5, 6, 8, as is shown by the following table : 
Harmonie, Observed, 
a 92 ‘04 
« aati 1:14 
7 1°38 1°37 
0) 1:84 1°83 
They give, therefore, the following phyllotactic approximations : 
O. Be2X tp artyHRsatd=F3;8R + O=f The phyllotactic 
Raed is modified by an approximate repetition of the harmonic ratio %. 
Warmonic. Observed. 
a, 95 94 
Bo 114 1.14 
Yo 136.8 73h 
We thus find, wherever we look, abundant evidence, not only of pri- 
Mary harmonic influence, but also of secondary and subordinate modifica- 
tions which need to be carefully studied in connection with virial re- 
Searches, 
402. Consequences of Ferrel’s Law. 
The science of Me teorology may, for many good reasons, be 1 regarded as 
4 peculiarly American science. William Ferrel’s discussion of the motion 
of fluids and solids relative to the Barth’s surface, which was first published 
in the summer of 1856, placed the laws of cyclonism and anticylonism on 
PROC, AMER. PHILOS. SOC. xxt. 114. Q. PRINTED AUGUST 3, 1883, 
[Chase. 
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