TOreleas Gelegrapbg. 177 



of Israel. But the people of those days had 

 no " coherer " or telephone or any other means 

 of converting these waves into visual or audi- 

 ble signals. Thousands of years had to elapse 

 before the intellect of man could grasp the 

 meaning of these natural phenomena suffi- 

 ciently to harness them and make them sub- 

 servient to his will. 



Many people have been powerfully "shocked" 

 some even killed by the impact of ether- 

 - set up by powerful discharges of light- 

 ning between the clouds and the earth when 

 they were not in the direct path of the light- 

 jiinir-stroke. 



The history of Electro- Wireless Telegraphy, 

 like that of all inventions, is one of successive 

 stages, and all the work was not done by one 

 man. The one who gets the most credit is 

 usually the one who puts on the finishing 

 touches and brings it out before the public, 

 lie may have done much toward its develop- 

 ment or lie may have done but little. 



In the year 1842 Morse transmitted a bat- 

 urn in through the water of a canal 

 eighty feet wide so as to affect a galvanometer 

 on the <>i.]i"-ite side from tin- battery. This 

 was wireless telegraphy by conduction through 



In 1835 Joseph Henry produced an effect on 



'-.Milometer by ether-\vave< through a dis- 



of twenty foot by an arrangement of 



