


349 
The total excess for 1886 is nearly half as much as was 
received during any one month. 
The average temperatures derived from three observa- 
tions each day for these periods were: 
; 1885 1886 
GAN BS. ABs acs Pismieus AE area at RO 
DUMBO MEL ec Dee 66.33 67.3 
a BE pc oR oe De es 72.31 70.9 
PAL «ciel. 2508h «6 2 65.76 69.2 
emma BSL 60.37 63.1 
Ohms 8. 025 Dl ORS: 48.95 50.8 
It is evident that the temperature has been nearly pro 
portional to the sunshine, and there is little doubt that 
when sufficient data are at hand, some relation will be traced 
between sunshine and plant development. It is not im- 
probable that the difference in the maturity of late crops, 
especially corn and grapes, for 1885 and 1886 may be 
largely due to the difference in sunshine. 
The results of our observations are presented below. 
Before | After 
1885. 9a. m, 9-12 12-2 3 p.m. Total. 
May—Total hours,.......... 41-45 44-15 40-45 38-15 165. 
Per cent. of possible sunshine. 30.8 47.6 43.8 29.0 36.4 
June—Total hours.:......... 63-15 58-30 54-30 59-15 237-30 
Per cent. of possible sunshine.47.1 65.0 60.5 42.7 52.0 
July—-Total hours........... 64-45 55-45 61-45 66 30 284-45 
Per cent. of possible sunshine. 47.9 60. 66.4 47.2 53.8 
August—Total hours......... 43-00 42-45 39-45 38-00 353-80 
Per cent of possible sunshine .36.0 46.0 42.7 30.8 38.1 
Septembei—Total hours...... 43-15 58 45 38.00 46-45 206-45 
Per cent. of possible sunshine .43.5 65.3 64.4 49.6 55.3 
October—Total hours........ 20-00 39-15 44-30 30-45 134-30 
Per cent. of possible sunshine. 25.7 42.2 47.8 39.5 39.3 
November-—Total hours...... 6-15 17-00 22-00 7-45 53-00 
Per cent. of possible sunshine. 11.0 19.0 24.7 13.7 18.1 
December—Total hours...... 5-00 21-15 20-00 3-45 50.00 
Per cent. of possible sunshine. 9.0 22.8 21.5 8.2 17.6 
