498 



REPORT 1891, 



Curve XV. — Kennet, Marlborough. 9 A.M. 



Au- ncU€r 



Thent. 



Observations were made from January 1889 to January 1890, and 

 from September 1890 to July 1801, by Mr. Frank E. Lott, acting for tbe 

 Burton-on-Trent Natural History Society. Tbe temperature was ob- 

 served on tbe rigbt bank of tbe main stream, immediately below Barton 

 Bridge, and tbe deptb by a flood gauge on tbe otber branch of the river 

 was read at the same time, usually about 9.30 a.m. 



Curve XVIa.— Trent, Burton. 9.30 a.m. 



The Curves XYIa. and XVlh. show that water- and air-temperature 

 kept very close together, and bad almost an equal range, in complete 

 contrast to the Kennet. On tbe whole, the air was warmer while the 



