596 Transactions of the American Institute. 



from the iron that the increase of the magnetism does not compensate 

 for the increase of resistance. 



A Yote of Thanks. • 



This meeting being the last one before the usual summer recess, 

 Prof. James A. Whitney moved a vote of thanks to the Chairman of 

 the Polytechnic Association, for the ability, kindness and impartiality 

 with which he had presided over the association during the past 

 year, which was received with applause, and was seconded by Prof. 

 Yan der "Weyde. Prof. "Whitney, thereupon, asked the association 

 to vote, and the resolution was unanimously adopted. 



The Chairman, after expressing his warm acknowledgments for the 

 compliments conveyed to him in the resolution just adopted, added 

 that the great attractiveness of the Polytechnic must be ascribed to 

 the action of the able scientists who have participated in its debates, and 

 have furnished written dissertations on the practicability of proposed 

 improvements, in which the public are supposed to be, for the time, 

 interested, but more especially to the labors of those professors who 

 have delivered lectures on scientific themes, and illustrated them with 

 convincing experiments. The great range of topics introduced in the 

 notes on new discoveries, and the novel devices presented here for 

 examination, have furnished ample opportunity for eliciting valuable 

 opinions from those whose judgments are founded on experience. 

 On examining the annual reports of the operations of the Polytechnic, 

 during the many years he had had the honor of presiding over its 

 deliberations, he had often been profoundly impressed with the ability 

 displayed in its debates, and had been struck with the fact that the 

 light thus thrown on a subject had frequently been the means of 

 harmonizing the apparently conflicting deductions of theory and of 

 practice. He believed he was justified in saying that the always 

 harmonious proceedings of this Society had been regularly increasing 

 in interest and importance, from year to year, up to the present time ; 

 and for this gratifying result he must express his great obligations to 

 those gentlemen well versed in science who have assisted the chair. 

 Many of them had already attained high distinction in their respec- 

 tive professions ; others had evidently made great progress in the high 

 road to preferment, and nothing would give him greater satisfaction 

 than to learn, hereafter, that the labors of each have won the crown 

 of success. 



In conclusion, the Chairman alluded to the fact that meetings of 

 the Polytechnic, once in a month, were held on the same evening 



