made at Cambridge. 471 



among very numerous and dissimilar appearances of the 

 clouds, pendulous lobes as it were hanging from a sort of 

 dense sheet, which formed a sort of depending cirrocumulus ; 

 afterwards a deep red was conspicuous in the cloud oppo- 

 site to the set sun, as well as red in the western haze. 



May 22. — Pair early ; showers came on in the day, and 

 much cloud ; evening fair, except a mistiness. Therm. 11 

 P.M. 4S°. 



May 23. — Clouds in the morning with sunny intervals ; 

 they increased, and eventually small rain succeeded; to- 

 wards evening the wind fell and it got warmer. Therm. 

 ».t II, 54*. 



May 24. — Still showery weather, with strong west wind. 

 Therm, at 3 P.M. 62°, at 1 1 P.M. 50°. 



May 25. — Still showery with westerly gales, but more 

 clouds today than rain. Therm. 63' in the middle of the 

 day, at 1 1 P.M. 55°. 



May 16. — Some showers during the day, various ap- 

 pearances of ihe cumulostratus, and in the intervals towards 

 evening heavy nimbi appeared about and a rainbow *. Sonie 

 curmdostrati in the west refracted a ri ch sort of mahogany 

 colour. Orange was the precise colour of the haze. Therm. 

 at 3,/62Vand 1 1 P.M. 44°. Wind westerly today. 



May 27. — Fine morning, much cloud through the day ; 

 fair evening ; the colour of the haze red j fading upwards as 

 usual. Therm, at 3, 64" ; at 11, 52°. Wind westerly. 



May es.i — Fair dav, with large masses of cumulus ; to- 

 wards evening very clear and dry, but cirrus in abundance 

 variously figured about and coloured by setting sun ; also 

 some cirrocumulus and cirrostratus in mottled beds had 

 a pretty appearance. Colour of the haze in the west red- 

 dish. Therm. 4 P.M. 62*^; 11, 51°. The owls hooted more 

 than usual ; a frequent sign of fine weather, as noticed by 

 Virgil. 



May 29. — F'vir hot day, very clear in the morning; du- 

 ring the day cumuli and cirri appeared, the latter were pur- 

 ple in the west after sunset ; the thermometer at 7 P.M. 

 70°, at 1 1 night, 60"^. 



Corpus Christ! College, Cambridge, ThOMAS FoRSTER. 



June 12, 1813. 

 * Tlie arc was partly jeeu in the blue sky, a circuinstiiice which seems 

 to §how that tKe particles of the nimbiform cloud may be very thinly difFused, 

 «o as hardly to alter the appearance of the sky, and yet be .iiirticient to pro- 

 duce the rainbow. This circumstance, when considered in reference to the 

 incapability of other cloudt to show the iris, may be regarded as alTurdiiig 

 collateral evidence of the peculiar change which takes place in clouds to bc- 

 cuMie mmbi. 



[To be continued. J 



METEORO- 



