324 



Prof. Frankland on some Winter 



[May 7, 



The afternoon and night were cloudy. 



At Greenwich the readings were, with blackened bulb in vacua : 

 maximum 19-6 C. (67-3 Fahr.) ; at 9 A.M., 2-8 C. (37 Fahr.) ; at noon 

 and at 3 P.M., 19-6 C. (67' 3 Fahr.). The maximum in the shade was 

 8'l C. (46-6 Fahr.), and the minimum on grass in the shade was - l-2 0. 

 (29-9 Fahr.). 



January 2nd. A cloudy morning. Sun not visible until nearly 

 9 A.M. ; afterwards clear and calm, except at about 10.40 AM., when a few 

 light clouds appeared. Minimum temperature during the night, as 

 measured by an unverified spirit thermometer, 9-2C. At 8 A.M. the 

 thermometer on the snow stood at 6 0> 7 C. ; atmospheric pressure 

 627*8 millims. At noon the thermometer in the shade stood at 

 5C., and at 3 P.M. it registered 4- 6 C. The following observa- 

 tions were made with the blackened bulb in vacuo : 



At Greenwich the readings were, with blackened bulb in vacuo : 

 maximum 14-2 C. (57-5 Fahr.) ; at 9 A.M., 9'3 C. (48-8 Fahr.) ; at noon 

 and at 3 P.M., 14-2 C. (57'5 Fahr.). The maximum in the shade was 

 10'4 C. (50*7 Fahr.), and the minimum on grass in the shade was 2-6 C. 

 (36-6 Fahr.). 



January 3rd. A calm but cloudy morning. At sunrise the ther- 

 mometer on the snow registered 6-9 C. The unverified spirit minimum 

 showed the lowest temperature during the night to have been - 11 C. 

 Barometer 624 millims. At 11 A.M. the sun was just visible, and in the 

 afternoon the clouds became still thinner. At 12.15 P.M. the ther- 

 mometer in the shade stood at + 0-8 C. The blackened bulb in vacuo 

 stood at 9 C. at 9 A.M. and also at 11 A.M. Between 11 and noon it 

 rose to 29 C. At 12.15 P.M. it marked 15'5 C., and between that hour 

 and 2 P.M. it reached 28 C., whilst at 2 P.M. it stood at 25 C. 



