752 



THE POPULAR SCIENCE MONTHLY. 



PHOTOGRAPHING A STREAK OF LIGHTNING. 



By GASTON TISSANDIEE. 



A BOHEMIAN observer, M. Robert Haensel, of Reicbenberg, bas 

 succeeded in accurately photograpbing a flasb of ligbtning. His 

 pictures, of wbicb be bas taken several, sbow tbe ligbt of tbe flasb, 

 under tbe form of long, continuous sparks, traversing tbe atmospbere. 

 Witb tbe spark tbe landscape also is well produced, and a means is 



Fig. 1. 



