No. III.] 



Dr. RICHARDSON ON THE AURORA. 



607 



peared; whilst the remainder, separating laterally into several long streaks of 

 light, shot quickly up in flashes from the N. W. to crossing the zenith. 



Sky moderately clear. 



About lh. (a. m. 13th s ) there were many masses of light in various parts of 

 the sky, which bore a strong resemblance to assemblages of the clouds deno- 

 minated cirro-cumuli. At one time a remarkable body of light appeared in 

 the N. N.E., which occasionally split into detached parts by a lateral reces- 

 sion, but its general motion was directly to the S. W. It obscured the smaller 

 stars, but did not completely hide those of the first magnitude. 



December 13th, 1820. 



Hour. Temp. Wind. 



A. M. 9 —35 S.W. Light. Clear. Pretty dense mist from the rapid. 

 Noon, —32 W.b.S. Moderate clear. 



9—34 Nearly calm. Small snow. Bright moon-light. A few stars 



visible. 



At lh. (a. m. 14th), a broad arch of faint light, crossing the zenith, extended 

 from horizon to horizon, its extremities bearing E. and W. A meteor, termed 

 a falling star, was observed at this time. It remained luminous, until it came 

 below the near side of a tree-top at no great distance. When the arch broke 

 up, its west end disappeared entirely, but its eastern extremities assumed for 

 some time the semblance of a group of cirro-cumuli. 







December 14th, 1820. 



Temp. 



Wind. 





-26 



S.b.W. 



Light cloudy. 



-19 



s;s:w. 



Moderate do. Prevailing cloud a modification of 







stratus or cirro-stratus. 



-19 



do. 



do. do, Little mist from the rapid. 







Snow. 



-16 



N. E. 



Mod. Clear. 



11 



Noon, 

 P.M. 1 



At midnight, a faint arch extended from the horizon in the S.E. b.E. to 

 the N. W.b.W., its centre passing to the southward of the zenith. Bright 

 moon-light. 



