82 



JOURNAL OF THE 



NOTES. 



TEMPERATURE OF WELL WATERS IN CHAPEL HILL. 



Observations were taken during one year about the middle of 

 every month, excepting July. A very accurate Geissler thermometer 

 was used, graduated into tenths of a degree. The wells examined 

 w^ere College (1), Dr. Phillips' (2), Prof. Venable's (3), Mrs. Hendon's 

 (4), Prof. Manning's (5), ani President Battle's (6). These vary con- 

 siderably in depth and most probably tap different strata. The fol- 

 lowing table gives the results of the observations : 



Seasons. 



Spring . . 

 Summer 

 Fall .... 

 Winter . 

 Annual . 



55-9 

 58.6 



58.5 

 55.8 

 57.2 



University of North Carolina. 



F. P. Venable. 



ELEVATION OF CHAPEL HILL. 



Determined by computation (using Guyot's tables) from Barom- 

 etric observations for the year September, 1882, to August, 1883, 

 inclusive, taken at Wilmington, Charlotte and Chapel Hill ; and de- 

 termining approximately the correclion to be made by comparing 

 the known elevation of Charlotte with the computed elevation. 



Elevation of Chapel Hill by comparison with Wilmington is 

 491.56 feet. 



By comparison with Charlotte, it is 495.84 feet. 



Mean of the two computations is 495.2 feet. 



Known elevation of Charlotte is 838 feet. 



Computed elevation of Charlotte by comparrison with Wilming- 

 ton 806.61 feet. 



Difference = 31.39 feet. 



Making proportional correction to the computed elevation of 

 Chapel Hill, which is found to be 13.27 feet, we have an approximate 

 elevation of Chapel Hill 514.47 feet. 



Chapel Hill, N. C. J. AV. Gore. 



