TAKEN AT "WANSFORD HOUSE, WATFORD, 1878. 221 



No rain fell until the 6th, then there was rain every day until 

 the 10th, scarcely any for the next ten clays, and from the 21st a 

 considerable amount nearly every day to the end of the month. 



There was a dense fog on the 17th, and again on the 21st, a 

 heavy gale of wind on the night of the 29th, and a slight fall of 

 snow on the 30th. 



November. 



The range in atmospheric pressure was again considerable, being 

 1-198 in., from 29-252 ins. on the 16th to 30-450 ins. on the 19th, 

 a very rapid rise in the three days. Pressure varied also very con- 

 siderably several times during the month. Commencing high, there 

 was a decrease every day, except on the 9th, from 30-232 ins. on 

 the 3rd to the minimum on the 16th, and after a high period, from 

 the maximum on the 19th to the 24th, there was a sudden fall of 

 the mercury, followed by an equally sudden rise on the 29th. 



Temperature also varied considerably, but there was a general 

 decrease throughout the month. The minimum, on the 23rd, was 

 much lower than any recorded for several days before or after, and 

 it is remarkable that the maximum occurred so near as the 24th, 

 and though unusually low was only approached within 4° on the 

 10th and 25th. The minimum sank to below 32° on eight days, 

 and the minimum of the 23rd (25'^- 6) was nearly reached on the 

 30th, when 26°-3 was recorded. 



The wind was northerly to the 7th, then generally westerly to 

 the 17th, and W., IS"., or E. for the remainder of the month. 



Rain fell nearly every day, excepting from the 1st to the 3rd 

 and from the 19th to the 22nd, the only other days without rain 

 being the 5th and the 29th. The maximum of the 10th was nearly 

 equalled on the previous day, when 0-76 in. fell ; on the 15th there 

 was a fall of 0-61 in., and on the 27tli of 0-57 in., making four ex- 

 cessive falls in the month. There was a slight fall of snow on 

 the 12th. 



On the nights of the 9th- 10th, and 15th- 16th, there were gales 

 of wind; and hoar frosts were recorded on the mornings of the 12th, 

 19th, and 23rd. The 24th was foggy. 



December. 



Again there was a considerable variation in atmospheric pressure, 

 though not so great as in either of the two previous months. The 

 minimum was 29*195 ins., on the 19th, and the maximum 30-344 

 ins., on the 24th, giving a range of 1-149 in. There was a sudden 

 rise of the mercury from 9 a.m. on the 1st to 9 a.m. on the 2nd, 

 followed by a sudden fall from the 6th to the 7tli, from which day 

 pressure continued low until the 24th. From that day, at 9 a.m , 

 to the same hour on the 26th, there was a fall of about one inch, 

 the pressure on the 26th being 29-383 ins., and from then to the 

 end of the month the mercury continued low. 



The temperature of the air was again unusually low, excepting 

 during the last two days, the mean of which was about 20° higher 



