VI. 



METEOROLOGICAL OBSERVATIONS TAKEN AT TIIROCKING, 

 HERTS, DURING THE YEAR 1881. 



By the Kev. C. W. Harvet, M.A., F.M.S. 



Read at Watford, 2\st March, 1882. 



Xo change having taken place since my last communication, I 

 need only here state the Posit/on of Station, Lat. 51° 57' N., Long. 

 0° 3' W., llib District ; Height of Station above sea-level, 484 feet; 

 and Times of Observing, 9 a.m. and 9 p.m. 



Unlike the preceding year, there are several points in which 

 1881 may be regarded as a notable year in meteorology. The 

 heavy snow-storm of January 18th ; the extreme heat of July 15th ; 

 and the terrific gale of October 14th, are happily not every-day 

 occurrences. It is rarely we experience such a range of tempera- 

 ture, a range close upon 79°, i.e. from 10°-7 on Jan. 22nd, to 89°-6 

 on July 15th ; it is rarely traffic is so completely blocked as it was 

 on Jan. 18th by drifted snow; and it is rarely that a gale works 

 such havoc among our sturdy forest trees as did that of Oct. 14th. 



I have again adopted Mr. Hopkinson's form of table, thus ren- 

 dering comparison between the two stations easy (pp. 50, 51). 



In the following table I give a set of adopted means, at the same 

 time comparing my own observations for 1880-81 with them. 



* London and Yarmouth. 



VOL. II.— PART II. 



t Lea District. 



