318 



Extra Meteorological Observations, 1844. 



ACTINOJIETEK. 



Sun's 

 Alti- 

 tude. 



Makers toun 



Mean Time 



of 



First Keadinff 



In Sun 



or 

 Shade. 



Observation. 



Be^un- Ended 



Change 

 in 

 60". 



Effect 



of 

 Sun. 



Mean 



of 

 Group, 



Sun's 

 Alti- 

 tude. 



Sc. div. Sc. div. 



12-2 



10-9 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Febrtjary 5, 6, 1844. 



18-5 



18-6 



17-5 



1 48 53 



50 23 



51 23 



52 53 



53 53 



55 23 



56 23 



57 53 



58 53 



38 53 



40 23 



41 23 



42 53 



43 53 



45 23 



46 23 



47 53 



48 53 



3 18 53 



20 23 



21 23 



22 53 



23 53 



25 23 



26 23 



27 53 



28 53 



41 53 



43 23 



44 23 



45 53 



46 53 



48 23 



49 23 



50 59 



51 59 



53 23 



54 23 



55 53 



56 53 



February 6, 1844. 



15-5 



120 



8-2 



56 



.Ian. 13^' l^ 0'". .Scud and cumuli on E. horizon ; sky very millcy about the Sun ; a very slight breath of wind ; dry thermometer 40-' 

 wet thermometer 37''3. 



.Fan. IS-i li> 39"» 

 Feb. Sii 23' .■JS" 

 Feb. 6'' 01' 20". 

 Sun since 23** .50™ 

 Feb. fiJ 1'' lO"-. 

 Feb. 6'' l* .51". 

 Feb. 6'' 21' 44. 

 Feb. 6'' 3i> 23". 

 Feb. 6" S' 41-51 



I >ry thermometer 40''.4 : wet thermometer 37°.2. [mometer 28°.9 ; wet thermometer 27''-4. 



Patches of cirro-strati to SSE., 20" or 25° from the Sun ; ground covered with snow ; barometer 29.262 in. ; dry ther- 

 Patches of cirro-strati disappeared ; sky quite clear. 24*". Highest reading of black bulb thermometer exposed to the 

 63°-8. 28". Slight bre.ith nf wind from S\V. 32'". Dry thermometer 32° 6 : wet thermometer 30° 9. 

 Slight wind. 19'". Itry tln-rinometer 34°.9 ; wet thermometer 32°-9. [thermometer 33°'2. 



Patches of cirro-strati to S\V., about 18° from the Sun ; th<^y disappeared at 55"". 59"'. Dry thermometer 35°-2 ; wet 

 Sky quite clear. 50". Dry thermometer 35°.6 ; wet thermometer 33°.l. 

 Streaks of cirro-stratus to W. 27". Streaks of cirrus coming up to about 10° above the Sun. 



Observations made on the roof of the Observatory ; some moisture gathers inside the glass case of the actinometer, 



which may probably affect the observations ; at 55" the Sun getting behind trees. 



