318 



Extra Meteorological Observations, 1844. 



ACTINOMETER. 



Makerstoun 



Mean Time 



of 



First Reading. 



li. m. 



In Sun 



or 

 Shade. 



Observation. 



Begun. 



Sc. div. 



Ended 



Se. div. 



60s. 



Sc. div. 



Effect 



of 

 Sun. 



Sc. eiv. 



Mean 



of 

 Group 



Sc. div. 



Sun's 

 Alti- 

 tude. 



13 



13 







January 13, 



L844. 







55 







Sun 



38-3 



39-8 



+ 1-5 







56 



30 



Shade 



39-8 



39-0 



-0-8 



21 





57 



30 



Sun 



390 



40-1 



+ 1-1 



2-0 





59 







Shade 



40-0 



39-0 



-1-0 



2-0 





1 







Sun 



390 



40-0 



+ 1-0 



21 



2-06 



1 



30 



Shade 



39-7 



38-6 



-11 



20 





2 



30 



Sun 



38-6 



39-5 



+ 0-9 



21 





4 







Shade 



39-1 



37-9 



-1-2 



21 





5 







Sun 



37-9 



38-8 



+ 0-9 







1 27 







Sun 



23-0 



240 



+ 1-0 







28 



30 



Shade 



23-9 



23-3 



-0-6 



1-5 



^ 



29 



30 



Sun 



23-3 



24-2 



+ 0-9 



14 



1 



31 







Shade 



24-1 



23-7 



-0-4 



1-3 





32 







Sun 



23-7 



24-5 



+ 0-8 



1-2 



1-29 



33 



30 



Shade 



24-3 



23-9 



-0-4 



1-2 





34 



30 



Sun 



23-9 



24-7 



+ 0-8 



1-2 





36 







Shade 



24-4 



240 



-0-4 



1-2 





37 







Sun 



24-0 



24-8 



+ 0-8 







12-2 



10-9 



23 49 



53 



51 



23 



52 



23 



53 



53 



54 



53 



56 



23 



57 



23 



58 



53 







23 



20 



53 



22 



23 



23 



23 



24 



53 



25 



53 



27 



23 



28 



23 



29 



53 



30 



53 



1 7 



53 



9 



23 



10 



23 



11 



53 



12 



53 



14 



23 



15 



23 



16 



53 



17 



53 



February 5, 6, 1844. 



Sun 120-0 20-3 +0-3 



Shade 20-8 21-0 +0-2 



Sun 21-0 21-7 +0-7 



Shade 22-0 22-3 +0-3 



Sun 22-3 23-3 +10 



Shade 23-7 24-0 +0-3 



Sun 24-0 25-2 +1-2 



Shade 25-6 25-9 +0-3 



Sun 25-9 27-1 +1-2 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



23-3 

 25-6 

 25-8 

 28-3 

 28-4 

 310 

 310 

 33-4 

 331 



25-9 

 281 

 28-3 

 30-6 

 30-6 

 32-7 

 32-5 

 34-5 

 34-2 



25-2 

 25-8 

 28-0 

 28-4 

 30-9 

 310 

 33-1 

 331 

 35-3 



27-9 

 28-3 

 30-2 

 30-6 

 32-2 

 32-5 

 341 

 34-2 

 360 



+ 1-9 

 + 0-2 

 + 2-2 

 + 0-1 

 + 2-5 

 00 

 + 21 

 -0-3 

 + 2-2 



+ 2-0 

 + 0-2 

 + 1-9 

 00 

 + 1-6 

 -0-2 

 + 1-6 

 -0-3 

 + 1-8 



0-3 





0-5 





0-5 





0-7 



^0-66 



0-8 





0-9 





0-9 





1-8 



1 



21 





2-2 





2-5 



[2-23 



2-3 





2-2 





2-5 





1-7 



~» 



1-8 





1-7 





1-7 



1-79 



1-8 





1-8 





20 



. 



18-5 



18-6 



17-5 



Makerstoun 



Mean Time 



of 



First Reading. 



h. TO. 



In Sun 



or 

 Shade. 



Observation. 



Be<jun. 



Ended. 



Sc. div. Sc. div 



Change 

 in 

 60 s . 



Sc. div. 



Effect 



of 

 Sun. 



6 2 



6 3 



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 



18 53 



20 23 



21 23 



22 53 



23 53 



25 23 



26 23 



27 53 



28 53 



3 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. 



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 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



Shade 



Sun 



24-0 

 26-1 

 26-2 

 28-3 

 28-3 

 30-2 

 300 

 320 

 32-0 



330 

 34-9 

 34-4 

 35-7 

 351 

 36-3 

 35-8 

 36-9 

 36-0 



26-7 

 280 

 27-7 

 28-9 

 28-9 

 29-9 

 29-6 

 301 

 29-9 



280 

 28-9 

 28-6 

 29-4 

 29-0 

 300 

 29-9 

 30-3 

 300 

 30-7 

 30-2 

 30-9 

 30-4 



25-9 

 26-2 

 28-0 

 28-3 

 30-2 

 300 

 320 

 31-9 

 33-7 



34-6 

 34-4 

 35-5 

 351 

 360 

 35-8 

 36-9 

 360 

 370 



27-8 

 27-7 

 28-7 

 28-9 

 29-8 

 29-6 

 30-3 

 29-9 

 30-4 



28-8 

 28-6 

 29-2 

 29-0 

 30-0 

 29-9 

 30-2 

 300 

 30-6 

 30-2 

 30-9 

 30-4 

 30-8 



+ 1-9 

 + 0-1 

 + 1-8 

 00 

 + 1-9 

 -0-2 

 + 20 

 -01 

 + 1-7 



+ 1-6 

 -0-5 

 + 1-1 

 -0-6 

 + 0-9 

 -0-5 

 + 1-1 

 -0-9 

 + 1-0 



+ 1-1 

 -0-3 

 + 10 

 00 

 + 0-9 

 -0-3 

 + 0-7 

 -0-2 

 + 0-5 



+ 0-8 

 -0-3 

 + 0-6 

 -0-4 

 + 10 

 -01 

 + 0-3 

 -0-3 

 + 0-6 

 -0-5 

 + 0-7 

 -0-5 

 + 0-2 



Sc. div. 



1-7 



1-7 

 1-8 

 20 

 21 

 2-2 

 1-9 



1-3 

 1-2 



0-9 

 11 

 11 

 0-9 

 0-8 



10 

 0-9 

 1-2 

 1-3 

 0-7 

 0-5 

 0-8 

 10 

 11 

 1-2 

 10 



Jan. 13 d l h m . Scud and cumuli on E. horizon ; sky very milky about the Sun ; a very slight breath of wind ; dry thermometer 40' -'; 

 wet thermometer 37°-3. 



Jan. 13 d l h 39 m . Dry thermometer 40°-4 ; wet thermometer 37°-2. [mometer 28°9 ; wet thermometer 27 '4- 



Feb. 5 d 23 h 55 m . Patches of cirro-strati to SSE., 20° or 25° from the Sun ; ground covered with snow ; barometer 29-262 in. ; dry tfcer- 

 Feb. 6 d h 20 m . Patches of cirro-strati disappeared ; sky quite clear. 24 m . Highest reading of black bulb thermometer exposed to tw 

 Sun since 23 h 50 m , 63°-8. 28™. Slight breath of wind from SW. 32"'. Dry thermometer 32° 6 ; wet thermometer 30° 9. 



Slight wind. 19 m . Dry thermometer 34°-9 ; wet thermometer 32°-9. [thermometer 33 ■'■■ 



Patches of cirro-strati to SW., about 18° from the Sun ; they disappeared at 55 m . 59 m . Dry thermometer 35°-2; »™ 

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

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



Feb. 6 d l h 10'". 

 Feb. 6 d lh 51-1. 

 Feb. 6 d 2t> 44. 

 Feb. 6 d 3" 23 m . 



Feb. 6 d 3 h 41-58 m . Observations made on the roof of the Observatory ; some inoisture gathers inside the glass case of the acvinometer, 

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



