62 J. HOPKIN-SOIf METEOEOLOGICAL OBSEKYATION'S 



between 6 and 7-30 ; the next four were again colder, with a little 

 rain and persistent N.E. wind. 



1st to 4th Mean 64°-9 Max 80°-0 Min 46"-4 



5th and 6th ,, 54-1 ,, 60-6 ,, 46-7 



7th to 10th ,, 47 -7 „ 47 -7 „ 37 -3 



On the morning of the 9th a ground frost was observed, dis- 

 appearing before 9 a.m. For the remainder of the month the 

 weather was more normal in character. 



July. — Bright and hot, with a very dry atmosphere and a great 

 range of temperature, a month of very similar character to May. 

 Max. temperature above 72° on 15 days (all before 21st), above 

 82° on 5 ; min. below 52° on 10 days, below 42° on 1. The hottest 

 periods were 1st to 5th, and 14th to 19th, thus dividing the month 

 into two hot and two comparatively cool periods. 



1st to 5th Mean 68^-4 Max. 



6th to 13th ,, 61 -7 ,, 



14th to 19th ,, 71 -7 ,, 



20th to 31st ,, 60 -2 ,, 



AtJGUST. — Very cold and wet, dull, humid, and windy, and 

 marked by a great prevalence of south-westerly winds. Max. 

 temperature above 72° on 4 days; min. below 52° on 16, below 

 42° on 1. The first eight days were warmer than the rest, and, 

 except the 8th, finer. 



1st to 8th Mean 62°-4 Max 8r-8 Min 46"-l 



9th to 20th ,, 57-5 ,, 68-0 ,, 45-2 



21st to 31st* ,, 58-4 ,, 68-5 ,, 40-5 



No rain fell from 2nd to 7th, but the only other days without 

 rain were the 9th, 13th, 20th, and 27th. The principal falls of 

 rain were "73 in. on 8th, '64 in. on 12th, -72 in. on 23rd, and -80 in. 

 on 29th. After the first few days south-westerly winds generally 

 prevailed, and the wind was direct S.W. without intermission from 

 20th to 29th. 



September. — Rather cold, very dull, calm, extremely humid, 

 and with frequent fogs and much dew, though with but little rain. 

 There was no decided change of temperature, but a gradual dimi- 

 nution for the last six days, and with the increase of cold an in- 

 creasingly humid atmosphere, becoming at last completely satui'ated. 



25th Mean 6r-5 Humidity 92% 28th Mean 5r-l Humidity 977„ 



26th ,,54-3 ,, 96 29th ,,50-4 ,, 99 



27th „ 52 -9 ,, 97 30th „ 48 -5 ,, 100 



Max. above 62° on 21 days, above 72° on 1 ; min. below 42° on 3 

 (28th to 30th). Wind mostly N. or N.E. the first half of the 

 month, variable afterwards. 



* The 9th to the 31st forms one cokl period, but I have here diWded this 

 period into two because the results for the last eleven days, during which time I 

 was away from liome, are uot from my own observations, being deduced from 

 returns kindly supplied to me by Miss Ormerod, Isleworth, and the Hev. C. W. 

 Harvey, Thi'ockiug. The rainfall was taken regularly during my absence. 



