and of the Great Heat of June 1826. 



241 



have been only 35°34. and according to Mr Adie 34°35, or 

 lower than the minimum for January 1825. About the mid- 

 dle of the month, there occurred a very intense frost, of which 

 I have collected the following observations. 



Within a few miles of Edinburgh, and near 400 feet above 

 the sea, I made the following observations with the utmost 

 care. The instrument used was one by Kme, in which I put 

 the utmost confidence. The mercury readily runs up the tube 

 when reversed, and returns to the bulb with a click. Besides, 

 it a-rees to the certainty of a small fraction of a degree with 

 a very large scale thermometer by Adie. I therefore do not 

 hesitate about the accuracy of the following numbers from my 

 register. 



Day. 

 9 

 10 



11 



12 

 13 

 14 



15 

 1C 

 17 



Hour. 

 8 15' M. 



8 

 8 

 8 

 8 

 8 

 8 

 8 

 8 



Therm. 

 1h\ 

 314 

 264 

 304 

 244 

 22 

 234 

 15| 

 40 



Hour. 

 8 A. 



8 

 8 

 8 

 8 

 8 

 8 

 8 

 8 



Therm. 

 23J 

 29 

 284 

 274 

 36| 

 204 



l»i 



34 



424 



Wind. 

 N.W. 

 N-W.&N.E. 

 N.W. 

 N. 



N.W. 

 N.W. 

 N.W. 

 N.W. 

 S.W. 



Additions to these observations : 



74 a.m. 25°. 3 p.m. 264- 10 p. m. 24| . In the country 



9 



9 Barometer at Edinburgh, 



12 — — — 



13 — — — 



14 — — ~~ 



14 Therm, in the country at 



15 Barom. at Edinburgh, 

 15 Therm, country, 



1 n Barom. Edinburgh, 



I c Therm, country, 



17 Barom. Edinburgh, 



2 P. m. 



14 — 



4 — 



124 — 



10 P. M. 



2 P. M. 



10 — 



1 — 



10 — 



1 — 



Dublin. 



.Ian 

 10 

 11 

 12 

 13 



By Dr Orpcn, South Frederick Street, 



Thermometer. Barometer. 



28° 10 a. 30 10 m. 29.95 10 A. 29.33 



27 31 29.35 29.86 



<2ii 28 29- 88 29 - 95 



26 25 30.01 30.00 



10 M. 



29.90 



29.60 



29.75 



29.85 



22i 



30.06 



1.54 



30.13 



364 



30.00 



Wind. 



N.E. 



E. 



E. 



E. 



