248 DURATIONS OF DIFFERENT WINDS DURING RAIN OR SNOW. 



TABLE IV. 



Comparative duratiou of the several winds duriug the hours in any part of 

 which snow fell, from observations in the years 1857 to 1859, inclu- 

 sive, the snow storms being arranged in four classes, according to the 

 amount of snow, and each class being taken to include all the higher 

 classes. 



