the motion of metallic plates vibrating under human 

 speech, merits special mention even in this rapid 

 sketch. 



One of Professor Blake's most characteristic traits 

 was the enthusiastic welcome, and wherever possible, 

 the disinterested aid, which he gave to every dawning 

 invention or discovery in which he could discern the 

 promise of genuine service to science or mankind. From 

 this double point of view, it was his great pleasure, during 

 the winter of 1876-7, in connection with his intimate 

 friend, Prof. John Pierce, to assist Mr. Alexander 

 Graham Bell in experiments with the telephone 

 then in the very early stages of its development. 



Among Professor Blake's published papers may be 

 mentioned the following: 



1. Stereoscopic Advertisements : 



Am. Jour, of Science and Arts, 2d Series, v. SO, p. 304. 



2. On a method of producing, by the electric spark, 



figures similar to those of Lichtenberg: 



lb. v. 49, p. 289. 



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