OF ARTS AND SCIENCES. 265 



by a child's music-box which he happened to have there. After- 

 wards the mouth harmonica was substituted, and its characteristic 

 notes clearly perceived. In both of these cases the characteristic pitch 

 and quality of the tones in the musical instruments used could be heard 

 at the distance of eighteen inches or more from the receiver. Mr. 

 Watson was then asked to speak into the transmitter, and, while the 

 ear was still at a distance of about fifteen inches from the receiver, a 

 sound was heard which was recognized as articulation, although the 

 words could not be distinguished at that distance. I then placed my 

 ear close to that portion of the box which was opposite the poles of 

 the magnet, and asked Mr. Watson to speak into the transmitter. I 

 then without difficulty was able to hear a number of sentences, which 

 were entirely unexpected to me. 



"/«^ 9. Please state whether on this occasion you also tried to 

 transmit articulate speech, using as a receiver a common hand Bell 

 telephone connected upon the circuit, with the mouthpiece and ordinary 

 diaphragms removed, and the instrument held against one end of the 

 tin box, so that the box should take the place of the diaphragm. And 

 if so, with what result ? 



" Ans. I did. With it we succeeded in ti-ansmitting articulate 

 speech from one station to the other with very great ease. 



" Int. 10. Will the Institute of Technology give or sell the defend- 

 ants the receiving apparatus you constructed, to be filed as an exhibit 

 in this case? and if not, will you please produce duplicates of said tin 

 box and horseshoe electro-magnet, and a wooden box like the one used 

 in your experiment ? 



"^??s. These early experiments have so much interest attached to 

 them, that it seems desirable to retain the original apparatus in the 

 possession of the Department of Physics. I will produce duplicates." 



Copies of the apparatus were also jiresented, in May, 1885, to the 

 defendants in the suit in equity, American Bell Telephone Company 

 et al. vs. The Western Pennsylvania Telegraph and Telephone Com- 

 pany et al.. Circuit Court of the United States, Western District of 

 Pennsylvania, on motion for preliminary injunction. At this time, 

 also, it was shown that articulate speech could be transmitted by the 

 apparatus, by attaching a mouthpiece to one prong of the tuning-fork 

 and placing a piece of carbon in the mercury under the style. Affida- 

 vits were also produced from Mr. G. W. Blodgett and Mr. L. W. 

 Wood, stating that I showed the apparatus described above to their 

 class in 1872. An affidavit of Mr. A. D. Blodgett shows that it was 

 also shown to his class by Professor Cross in 1874 



