Ill 
records of this instrument would afford the means of a ready 
estimate of the time when the heaviest pressures occur. 
By means of Mr. Oxley’s anemometer, I am able to record 
the variations of the wind for 24 hours, the exact degree of 
the compass whence each pressure comes, and from the daily 
curve, to deduce in a most satisfactory manner, the mean 
direction and range of the wind, as well as the mean direc- 
tion of the heaviest pressures. I consider it of the greatest 
importance to trace out the exact point of the compass 
whence every great pressure comes. If this were done at 
all our stations in this country, it would tend to a better 
understanding of the course storms take, and of the con- 
nection between the fall of rain, and the direction of the 
wind. 
“On the Fall of Rain at different periods of the day, in 
connection with the Diurnal Changes of Magnetic Declina- 
tion,” by Joseph Baxendell, ERAS. 
In a paper “ On the Fall of Rain during the different 
hours of the day, as deduced from a Series of Observations 
by the Rev. J. C. Bates, M.A., F.R.A.S., at St. Martin’s Par- 
sonage, Castleton Moor,” read at a meeting of this Section, 
held on the 1st March, 1866, I showed that the curve which 
represented the daily variations of rainfall as deduced from 
Mr. Bates’s short series of observations had well-marked 
points of similarity to that of the daily variations of 
magnetic declination. I remarked, however, that, “ owing 
to the shortness of the period over which Mr. Bates’s obser- 
vations extend, it is probable that the results derived from 
them may be open to considerable correction when a more 
extended series becomes available but, as I had found that 
when the series was divided into two, or even three, groups 
the main features of the daily variation were still preserved 
in the results of each group, I added that “ I did not antici- 
pate that any corrections which may hereafter be found to 
