Appendix. 



borne by the wind, sweeping along the surface of the earth, or /{* >* 

 whether it was carried along by the upper current, which moves 

 so steadily from the southwest, it doubtless originated in that 

 direction. 



It will, therefore, be somewhat unnecessary to consider the 

 state of the weather at the time, at any other points than those 

 lying in a westerly, southwesterly, or southerly direction. 



Starting, then, at the nearest point where reports are taken, 

 which is Grand Haven, at 4 o'clock, the time of the observation, 

 there was a heavy snow falling, and the wind, according to the 

 scale adopted by the weather bureau, was high, having a velocity 

 of 30 miles per hour. An hour later, however, during the fall of 

 the colored snow, it had decreased very much in velocity, and at 

 10 P. M., the time of the next observation, it had a velocity of 

 1 8 miles an hour. 



Crossing Lake Michigan to the west and southwest, Chicago 

 and Milwaukee would be the next points of observation. At the 

 former place the wind was southwest, at the rate of 18 miles per 

 hour, weather cloudy. At the latter the wind was from the west, 

 at the rate of 17 miles per hour, and a heavy storm falling. At 

 St. Louis the wind was brisk from the south, with a velocity of 

 1 6 miles an hour, and the weather clear. Proceeding farther to 

 the west and southwest, Fort Gibson, in the Indian Territory, 

 seems to be the only place from which observations are reported. 

 At this point there was a fresh wind from the southwest, with a 

 velocity of 10 miles per hour, and the weather clear. These re- 

 ports are all from the observations taken at 4 P. M. Observa- 

 tions taken at the same points in the morning, show the wind to 

 have been of very much less velocity, in no case being more than 

 12 or 15 miles per hour. In other words, at no point west, 

 southwest or south was there a wind of any great force. 



The weather reports for the few days preceding the 5th are 

 taken from the observations made at Chicago on the 4th. In 

 lower Missouri, Ohio, Tennesee and the Northwest, the barome- 

 ter was stationary, southwest wind, and cold and clear weather; 

 in the lake region, westerly winds, rising barometer and local 



