26 Proceedings. 



reached 70° on 12 days ; the maximum was 77"50'' on the 

 25th. It never fell below 41-50°. 



July was not so genial, being cooler than the average. The 

 temperature reached 70° and upwards on 15 days, the maxi- 

 mum being 77° on the 23rd, the minimum being 43° on 

 the 11th. 



August also was cool, though the temperature reached 70° 

 and upwards on 11 days, the maximum being 78° on the 5th, 

 the minimum 36° on the 31st. 



September ranged nearly 3° above the average, the highest 

 temperature of the year, 79°, occurring on the 5th. There 

 were no frosty nights in September, the minimum temperature 

 being 44° on the 1st and 12th. 



October on the average was cool. On 5 nights the tempe- 

 rature fell below freezing, the lowest temperature at 4 ft. from 

 the ground in the shade with a northern aspect beiug 23'50° 

 on the 27th ; the maximum temperature was 66° on the 4th, 

 beiug 12-5° less than the maximum of September. The low 

 temperature on the 4th was lower than had been observed at 

 Greenwich during the month of October for a period of 

 50 years. 



November was cool. On 9 days the glass fell below 32°, 

 and on 4 days it did not rise above the freezing-point, a very 

 unusual occurrence for November. The maximum was 58° 

 on the 23rd, the minimum 9*50° on the 28th. This low 

 temperature for November was as unusual as the low tempe- 

 rature in March. The difference between the maximum and 

 minimum was 48'5°, showing a very considerable range for 

 November. One cause of the low temperature on the 28th 

 was a clear sky at night, with snow on the ground. It was 

 the coldest night on record in Nov., at least for the last 50 years. 



December was very cold, the average temperature being 

 only 28-64°, about 10° below the average for 50 years. The 

 maximum temperature was 43° on the 4th, the minimum 11° 

 on the 11th. The thermometer fell below freezing on 27 days, 

 and did not rise above freezing-point during 12 days. Usually 

 there are not more than 4 or 5 days in the year on which the 

 temperature does not at some part of the day rise above 



