made at Camlridge. 259 



March \ 1 . — The thermometer has been down below the 

 freezing point in the night. Snow is now falhng (8 A.M.) 

 when there is no dense cloud near the zenith, only some of 

 the fleecy kind ; there is however a denser kind of cloud ia 

 the horizon ; afterwards common snow showers prevailed, 

 with clear intervals, and strong wind from NE, Thernu 

 at 11 P.M. as low as 29° 5 clear star-light night, at inter- 

 vals w.tli wind. 



March 12. — Snow showers, in which the nimbi never 

 appeared very dense ; the same phenomenon of snow fall- 

 ing, when there was no nimbus near the zenith, happened 

 again today. Either the snow must have been blown 

 along horizontally for some distance by a strong wind, or 

 must hive come from light clouds not suspected to be 

 nindn from spectators below. These clouds were a kind of 

 confused cirrus of light texture. The night was clear, and 

 Therm, at U, 2y". 



March 13.— Cloudy, and sun at times; by night large 

 and elevated masses oF cloud of no great density covered 

 the sky, thrfmah which the moon appeared, with a corona 

 at times. The'rm. at 11 P.M. 33=^. baiometer 30° 20". 

 Wind NE. 



March 14.— Cold, cloudy, damp day, with some rain, and 

 moderate wind, which got to the W. in afternoon. Therm. 

 7 A.M. 41°, n P M. also 41". The moon appeared at 

 times through the thinner parts of the clouds. 



March 13. — Warmer and overcast sky. Therm, at 

 noon 54° ; some rain came on in the evening, and the 

 Thermometer was 49". Wind southerly. 



March 16. — Warmer weather than yesterday. Therm, 

 at 3 P.M. .51°, at 1 1 P.M. 48'. Cloudy with small rain all 

 day, but it held up at nii^ht. Wind southerly. 



March 1 7. — Fmt clear warm day, only a few flimsy cirri 

 aloft. Therm. 3 P.M. b^" ; in the evening it became 

 cooler, the moon got hazy with a faint small corona round 

 her, a lar^e elevaicd arc of contused cirrus appeared a long 

 time stationary in the north, and at half after ten o'clock 

 a faint lunar halo began to be discoverable; the Thermo- 

 meter being 35°. Wind easterly. 



N. B. — The observations for the 12th and 13th of Fe- 

 bruary, were made not at Cambridge, but in Essex, about 

 twenty miles S. of Cambridge, 



Corpus Cliristi College, Cambridge, TlIOMAS FoRSTER. 



March lb, i8iJ, 



METKORO* 



