EXPLANATION OF THE UUAETO PLATE. 



The opposite quarto plate is intended to represent a group of trees, on the track of the tornado, 

 about three hundred yards a little west of south of the five mile post on the New Harmony Plank Road. 

 It is another view of the group represented in Pig. 8 of the map'; that view is taken from the loottom 

 of the hollow looking southwest : this one is taken from the top of the hill looking northeast to the 

 side of the opposite hill. 



The tree in front, parallel with the bottom of the picture, and marked No. 1, in the ground plan be- 

 low, is the undermost tree, and was prostrated from the southeast. Nos. 2 and 3, in the plan, prostrated 

 from the south-southwest, lie to the right out of the picture ; they are shown in Pig. 8 of the map. The 

 tree twisted off near the right margin, marked No. 4, in the plan, is from the southwest. The tree in the 

 front of the picture, at the bottom, marked No. 5, in the plan, is from nearly west. Nos. 2, 3, 4, and 

 5 lie over No. 1. No. 6, in the plan, from the northwest, is the tree interlocked in the forks of No. 1, 

 and overlying all the others ; exhibiting the remarkable peculiarity of a southeasterly interlocked in a 

 northwesterly prostration, and having four westerly and southwesterly prostrations between them. 



PUBLISHED BY THE SMITHSONIAN INSTITUTION, 

 WASHINGTON, D. C. 



APRIL, 1855. 



