162 PROCEEDINGS OF THE AMERICAN ACADEMY 



Member; and from Dr. Walter Channing, resigning the Fel- 

 lowship of the Academy. 



Dr. Hayes presented a pamphlet, " Reminiscences of Glass- 

 Making," by Deming Jarves, accompanying the donation by 

 some remarks on that art. He stated that at the present time 

 the United States are before all other countries in the man- 

 ufacture of flint glass, both in the quality and quantity of the 

 article produced. 



Dr. Hayes also presented the report of the committee of the 

 Franklin Institute, with one of his own appended, on E. G. 

 Poraeroy's new process of coating iron with copper, and ex- 

 hibited iron spikes coated by the process described. 



Professor Lovering exhibited to the Academy Plateau's new 

 instrument, the Anorthoscope, and explained its construction 

 and use. 



Professor J. Wyman said, that since the previous meeting, 

 in consequence of the remarks then made on the form of the 

 image produced by the sunlight in passing through apertures 

 of various shapes and sizes, he had examined the pupil of 

 the eye in various animals with reference to the point in ques- 

 tion. Professor Wyman described this as it exists, of various 

 shapes ; but he found by experimenting with apertures of 

 similar shapes cut in cards, that the image of the sun trans- 

 mitted through them remained always the same, with the ex- 

 ception of a greater or less penumbra at the circumference. 



Dr. C. T. .Tackson gave an account of the recent discovery 

 of gold at Bridgewater, Vt., where it is found in a vein of 

 quartz a foot and a half thick, in company with sulphuret 

 of lead, silver and copper pyrites. One ton of reduced lead 

 from this locality yields over six hundred dollars' worth of 

 gold. 



