278 Tornado in N. E. part of Ohio, Feb. 4, 1842. 



Fig. VI. Providence Tornado. 



a;^ 





resented in the figure. On the left 

 side, however, every post was pros- 

 trated westwardly, and the rails 

 were Hkewise blown shghtly back- 

 ward toward i, in the same general 

 direction. The scale of feet, which 

 measures across the track, was ob- 

 tained by estimating twelve feet to 

 each length of the rails. The lo- 

 cality of this sketch was perhaps a 

 mile eastward of the Lyon farm. 

 — The application of the foregoing 

 views of rotation to this case, it can 

 hardly be necessary to point out. 



I have noticed many effects of similar kind on fences ; but that 

 the backward prostration on the left side of the track should have 

 taken full effect in this case, and mainly, perhaps, under the sec- 

 ond quadrant, I ascribe to the age and general weakness of the 

 fence. 



Additional memorials might here be adduced in evidence, and 

 of similar character to the foregoing ; but having already occu- 

 pied more space than I intended, I must now leave the question 

 of a general whirlwind rotation in this and other tornadoes to the 

 candid consideration of impartial inquirers. 



New York, July 12, 1842. 



Art. hi. — On a Tornado which passed over Mayfeld, Ohio, 

 February Ath, 1842, with some notices of other Tornadoes ; 

 by Elias Loomis, Professor of Mathematics and Natural Phi- 

 losophy in Western Reserve College. 



(Communicated to the Conn. Acad, of Arts and Sciences, April 28, 1842.) 



On the 4th of February, 1842, between four and five o'clock, 

 P. M., a tornado of destructive violence was experienced in the 

 northeastern part of Ohio. It commenced near the south line of 

 the township of Mayfield, in latitude 41° 31' N., longitude 81° 

 27' W., and pursued a course N. 33^° E. for about twenty four 

 miles ; when meeting Lake Erie, it left no further traces of 

 its progress. A more distinct idea of its course may be formed 



