16 PROCEEDINGS OF THE CANADIAN INSTITUTE. 



strength of the current being regulated wliolly by the rheostat. This 

 is much safer, more economical and more convenient than the old 

 method, and these two additions to electro-therapeutic apparatus 

 mark a new departure —a new era, in fact^in electro-therapy. 



The vagueness of empiricism gives place to mathematical precision, 

 and this branch of medical science is at once lifted to a higher plane 

 of dignity and importance. 



In answer to a question by the President as to what proper, 

 tion of the current of electricity passed through the train, Dr. 

 Rosebrugh said that the current recorded itself. By placing 

 needles in the brain of a cadaver the galvanometer showed the 

 amount of the current that had passed through the brain.' 



Prof. Wright said that it was a matter of congratulation 

 that electro-therapeutics had passed out of the hands of 

 charlatans and had become a part of the regular practice. 



SEVENTH MEETING. 



Seventh Meeting, 17th December, 1887, the President in 

 the chair. 



Donations and exchanges since last meeting, 46. 



The Institute having been notified of the election of Pro- 

 fessor Samuel Pierpont Langley, LL.D., as Secretary of the 

 Smithsonian Institution, to succeed the late Professor Spencer 

 F. Baird, it was resolved on motion of James Bain, Jr., Esq., 

 seconded by Alexander Marling, LL.B., " That the Secretary 

 be instructed to convey to the Board of Regents of the Smith- 

 sonian Institution their congratulations on having secured the 

 services of Professor Samuel Pierpont Langley, LL.D., in the 

 office of Secretary, he being so well qualified to fill the posi- 

 tion by his attainments in mathematics and his eminence in 

 physical research." 



Alexander Black and John Bertram were elected members- 



