146 Scientific Intelligence. 
ith more perfect apparatus than that used by the latter and em- 
ioe Nichols’ prisms, which gave a much larger field than those 
used by Dr. Kerr. The results of “the latter are confirmed and 
eats when the fiat. under Detatnoiion is experimented 
upon. The liquid was also set in movement and the author states 
that the movement of the particles of the fluid have a marked 
influence upon the Erg of the directions of the vibrations 
of the light.— Wied. Ann., No. 5, p. 77, 1880 Fu Me 
9. Contributions to Moles ular Physics in ‘High Vacua.—In a 
which is a continuation of the Bakerian Lecture on the 
illumination of lines of molecular Lpeorsig. read before the Royal 
Society, December 5, 1878, Mr. Crookers describes some new and 
remarkable experiments which confirm the aback, that the phe- 
nomena described by him are due to the repulsion of the we 
molecules, an exhausted tube was ses with two negative 
oles and one positive pole. The two molecular streams, instead 
of gt a strongly — 6) Lr pole under the influence 
exhaustions. The m RITA rotations are Ginter in low vacua 
and depend as much upon the direction of the induction spark as 
upon the pole of the ma saa presented to the discharge. 
The phosphorescent e of the molecular impacts — 
the most beautiful effects obtained by Mr. ecu- 
lar rays in high vacua possess remarkable powers of ¢ sop 
bodies upon which they fall to phosphoresoe. < deadening effect 
hae ee upon glass by one continued phosphorescence is con- 
rmed by various “onus ents. e image of a cross was sten- 
cilled by phosphorescence on the end of a large bulb and the 
bulb was afterward melted and drawn out at the end and after- 
