204 



Gommendatore G. Marconi 



[June 2, 



hours, commeucino; at 12 noon throughout the month of April, 1911, 

 the vertical dotted lines representing sunset and sunrise at Glace 

 Bay and Clifden. 



Fig. 10 shows tlie curve for the first day of each month for 

 one year, from May 1910 to April 1911. 



I carried out a series of tests over longer distances than had ever 

 been previously attempted, in September and October of last year, be- 



PlG. 11. 



tween the stations at Clifden and Glace Bay, and a receiving station 

 placed on the Italian S.S. " Principessa Mafalda," in the course of a 

 voyage from Italy to the Argentine (Fig. 11). 



During these tests the receiving wire was supported by means of a 

 kite, as was done in ray early transatlantic tests of 1901, the height 

 of the kite varying from about 1000 to 8000 feet. Signals and 



