752 



THE POPULAR SCIENCE MONTHLY, 



PHOTOGRAPHING A STKEAK OF LIGHTNING. 



By GASTON TISSANDIER. 



A BOHEMIAN observer, M. Robert Haensel, of Reich enberg, has 

 succeeded in accurately photographing a flash of lightning. His 

 pictures, of which he has taken several, show the light of the flash, 

 under the form of long, continuous sparks, traversing the atmosphere. 

 With the spark the landscape also is well produced, and a means is 



Fig. 1. 



