THE BRUNSWICK LAND SPOUT. 319 



son, proving, beyond doubt, the inward and upward motion 

 of air in the spout. It is not a little remarkable that these 

 gentlemen, who were the only scientific persons acquainted 

 with my theory, are also the only ones who saw the facts 

 so as to give any intelligible account of them. 



On the 4th of July, fourteen days after the occurrence of 

 the spout, Professor A. D. Bache (now President of the 

 Girard College) and I visited the scene of action and com- 

 menced our examination of the phenomena, about seven 

 miles a little south of west from Brunswick, where it ap- 

 peared the spout first reached the surface of the earth. 



President Bache took the direction in which the trees 

 were lying, with a mariner's compass, and has published 

 in the Trans, of Am. Phil. Soc., a full account of his part of 

 the investigation, with plates, showing the direction in 

 which the trees fell. This account is too extensive to be in- 

 troduced here; I shall therefore satisfy myself with merely 

 giving the general conclusion at which he arrives. 



The very rigid manner in which it is known that Presi- 

 dent Bache pursues all his investigations, will induce the 

 reader to place great confidence in the conclusion, even 

 without a detail of the facts on which that conclusion is 

 founded. 



" As far as the examination of the different diagrams has 

 shown," he says, "I think it entirely made out, that there 

 was a rush of air in .all directions at the surface of the 

 ground towards the moving meteor ; this rush of air car- 

 rying objects with it. The effects all indicate a moving 

 column of rarefied air, without any whirling motion at or 

 near the surface of the earth. The facts to prove that 

 there was an upward motion, will be stated by Mr. Espy." 

 (See Trans. Am. Phil. Soc., for 1836, pp. 415, 416, 417.) 



I have a large number of facts concerning the Brunswick 

 tornado, which I collected, both at the time I examined it 

 with President Bache and afterwards, which I intended to 



