i eee 
_ tric attractions and repulsions between the particles of the fluid. ee. 
(1) Experiments show a fluctuation - the value of the index = 
_ of refraction which is due to the electric force. 
no (2 -) A Heaters lone dukatien. of the electric pressure 
(3.) The phenomena of the change of the index of refraction 
show = the electric pressure has no analogy with hydrostatic 
pressu 
(4.) These changes i in the index indicate ——* in hydrostatic 
pressure in the interior of the fluid which are caused by the elec- 
48 to hang a coil, of which the constants are known, in a sufi 
_ @lently intense and uniform magnetic field and find the —— 
. of th the oscillatory motion produced by the induction. The au 
ves that d corrections would be, in oe 
S Tespects, simpler then the method seme by Weber.— Phil. 
seu 1883, PR. 144— ee 
essor Ewine, of Tokio, pe 
oe 0. A ne ism —Profe 
a proposes the ae 2 of pagers 3 : A commo _ at Ho 
oe eeresigie pig ald ire. The i instrument has not, b 
been tested in an oe eee teers, ie 26, — 
= a : 
