No coin nor oath required. For personal study only.
The following letter, addressed to the Secretary of the Franklin Institute, in reply to inquiries as to the success attending the use of the Electric Light at the Railway station mentioned, gives some interesting and valuable statistics.
๐ SIMILAR VOLUMES
Diamagnetism of Hydrogen,--R. Blondlot finds that condensed hydrogen has diamagnetic properties of considerable energy, and that the diamagnetism increases in a greater ratio than the condensation. His experiments confirm some of the conclusions which Tyndall published in his researches upon crystal
Electric b'ghting in Mills.
The following article is extracted from the t)ages of L~.qineering~ Oct. 18, 1878, where it appeared ill consequence of its being a part of a discussion betbre the British Association where the experiments o1~ the electric light made bv the Franklin Institute in 1878 were referred to. It has been re