Meteorological Statistics 305 



departure of the ice. Then the river l)uilt up its floodplain of 

 modified drift to a height that coincided closely with that of 

 the limestone terrace, causing the mighty stream to flow there 

 in ra])ids, carrying the limestone masses and finer debris short 

 distances from their original beds, and in some places under- 

 mining, and toppling down the very large limestone blocks. 



This peculiar formation is well seen near the north end 

 of the High Bridge, for a third of a mile thence westward, at 

 numerous other places on that northeast side of the river 

 through this city, and on the opposite side near the Edison 

 school in West St. Paul. It is of very unusual and surprising 

 character and aspect, quite unlike any other formation which 

 I have ever found in much exploration of glacial and valley 

 drift. Therefore the probable conditions of its origin have 

 been sought, with the results here presented, and with the hope 

 that other Minnesota students of glacial geology will more 

 fully investigate the many interesting questions connected with 

 the history of this valley during the Ice age. 



December 5, 1905. 



METEOROLOGICAL STATISTICS. 



Bv William Cheney and T. S. Outram. 



These statistics are a continuation of the personal Meteor- 

 ological Observations began in 1864 by William Cheney, for 

 many years a member of this Academy. The first table pub- 

 lished by the Academy is in Bulletins vol. I, 1873-1879 pp. 174- 

 186; the second in Bulletins vol. IT, 1880-1882, pp. 422-435; the 

 third, this volume, ante, pp. 123-130. 



