Masterpieces of Science 



3. I was the first actually to magnetize a piece 

 of iron at a distance, and to call attention to the 

 fact of the applicability of my experiments to 

 the telegraph. 



4. I was the first to actually sound a bell at a 

 distance by means of the electro-magnet. 



5. The principles I had developed were applied 

 by Dr. Gale to. render Morse's machine effective 

 at a distance. 



36 



