exvi Journal of the Asiatic Society of Bengal. [NS., XIV, 
Section of Physics and Mathematics. 
President—Dr. Watt Monamman, M.A., Professor of Physics, 
M.A.O. College, Aligarh. 
(Presidential Address.) 
Recent Proaress in MaGneto-Oprics. 
In opening our proceedings to-day, allow me at the outset 
to express my deep sense of the honour the Indian Science 
Congress has conferred upon me in asking me to preside over 
this section and in giving me the privilege of addressing you 
on a scientific subject. 
s you know, the topics of the addresses vary from year 
to year and the variation is due to the predilection of the 
individual president. The types of addresses are not many. 
research or with the general progress of science. Jt may refer 
to recent discovery, or to those particular parts of it that have 
engaged the personal study of the president Lastly, it may 
deal with some controversial matter. 
I think, we have in our meeting those who wish to heat 
something of the most recent developments of scientific labour 
and to get a general survey of modern advances in some one 0F 
other of the branches of sciences to which our section ® 
devoted. 
4 
that Zeeman, following in the footsteps of Faraday, discoveret 
the effect known after his name, and laid the foundations ° 
magneto-optics. 
t 1S curlous to note that none of these epoch-making 
science. The discovery of the Rontgen rays had its origin 9 
eminent 
