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A number of oscillations in excess of the average at 
Geneva, in the months of January, March, June, July, 
August, and November, is accompanied by a larger amount 
of oscillation than when the number is belbw the average; 
during the rest of the year the converse holds good. For the 
entire year, an increased number of oscillations is accompanied 
by an increased amount of oscillation. 
At the St. Bernard, a number of oscillations above the 
average, in the months of January, February, March, April, 
May, August, September, and November, is accompanied by 
a larger amount of oscillation than when the number of oscil- 
lations is below the average. In the remaining months of 
the year the converse of the above holds good. The mean 
of the year gives the same results as Geneva. 
A rain fall above the average, at Geneva, is accompanied 
by a larger amount of oscillation, in every month of the year, 
than when the rain fall is below the average. 
At the St. Bernard, a rain fall above the average, in the 
months of February, March, May, July, August, November, 
and December, is accompanied by a larger amount of oscilla- 
tion than a rain fall below the average ; during the remainder 
of the year the converse of this exists. 
On the mean of the year, a rain fall above the average is 
accompanied by a less amount of oscillation than a rain fall 
below the average. This result is curious, being the direct 
converse of what was obtained for Geneva. 
The conclusions which may be drawn from this investiga- 
tion are the following. As we ascend in the atmosphere, the 
amplitude of the irregular diurnal oscillations of the barometer 
diminishes, more especially in the winter months; the summer 
