Proceedings. 



9i 



to place, in an outer wall, pipes, the freezing of which may 

 endanger lives, takes a course which is well nigh criminal. 



Professor SCHUSTER read the following note on "An 

 Oak Tree struck by Lightning " : — 



A B 



" The following instance of a flash of lightning striking 

 an oak tree on July 2nd, 1893, seems to be worthy of notice, 

 as the tree stood in a hollow, and seemed to be sufficiently 

 protected by the higher ground surrounding it. 



" The tree A is one of a row of five or six oaks, and 

 stands at the western end, the only tree further out being 

 the small tree B which stands under A, that is, the foliage 

 of the higher parts of the tree A which is not shown in the 

 figure, completely covers B, which consists of little else but 

 the stem. The other trees of the row are nearly of the same 

 height, but A is decidedly less high than some of the others. 

 The trees all stand at the lower end of a narrow valley, the 



