316 



Extra Meteorological Observations, 1843. 



ACTINOMETER. 



Makerstoun 



Mean Time 



of 



First Reading. 



h. m. 



In Sun 

 or 



Shade. 



Observation. 



Begun. 



Sc.div, 



Ended 



Change 

 in 

 60*. 



Sc. div. Sc. div. 



Effect 

 of 



Sun. 



Sc. dir. 



Mean 



of 

 Group 



Sc. div. 



Sun's 

 Alti- 

 tude. 



8 2 



30 42 



32 22 



33 22 



34 52 



35 52 



37 22 



38 22 



2 46 22 



47 57 



48 57 



50 22 



51 22 



s 



EPTEM 



BER 8, 



1843. 







Sun 



540 



60-2 



+ 6-2 







Shade 



60-0 



59-2 



-0-8 



6-9 





Sun 



59-2 



65-3 



+ 6-1 



7-1 





Shade 



65-1 



64-0 



-11 



70 



6-98 



Sun 



64-0 



69-8 



+ 5-8 



7-0 





Shade 



69-2 



67-9 



-1-3 



6-9 





Sun 



67-9 



73-3 



+ 5-4 







Sun 



68-0 



72-3 



+ 4-3 







Shade 



71-0 



68-2 



-2-8 



70 



1 



Sun 



68-2 



72-3 



+ 4-1 



6-7 



6-77 



Shade 



71-4 



68-9 



-2-5 



6-6 



1 



Sun 



68-9 



73-0 



+ 4-1 







31-2 



29-8 



21 



21 



21 







September 21, 



1843. 







17 44 



30 



Sun 



35-8 



35-3 



-0-5 







46 







Shade 



35-1 



29-8 



-5-3 







47 







Sun 



29-8 



29-2 



-0-6 







48 



30 



Shade 



28-9 



28-4 



-0-5 



00 



\ 



49 



30 



Sun 



28-4 



27-9 



-0-5 



01 





51 







Shade 



27-8 



27-1 



-0-7 



0-3 



[0-26 



52 







Sun 



27-1 



26-9 



-0-2 



0-5 





53 



30 



Shade 



26-6 



260 



-0-6 



0-4 





54 



30 



Sun 



260 



25-8 



-0-2 







56 







Shade 



25-7 



300 



+ 4-3 







57 







Sun 



300 



29-8 



-0-2 







58 



35 



Shade 



29-5 



290 



-0-5 



0-3 





59 



35 



Sun 



29-0 



28-8 



-0-2 



0-3 





18 1 







Shade 



28-7 



28-1 



-0-6 



0-5 





2 







Sun 



28-1 



28-0 



-01 



0-4 





3 



30 



Shade 



280 



27-6 



-0-4 



0-3 



0-33 



4 



30 



Sun 



27-6 



27-6 



00 



0-4 





6 







Shade 



27-3 



270 



-0-3 



0-3 





7 







Sun 



27-0 



27-0 



00 



0-2 





8 



40 



Shade 



26-9 



26-7 



-0-2 



0-3 





9 



40 



Sun 



26-7 



26-8 



+ 0-1 







18 14 







Sun 



27-8 



28-0 



+ 0-2 







15 



30 



Shade 



28-0 



27-7 



-0-3 



0-5 





16 



30 



Sun 



27-7 



28-0 



+ 0-3 



0-6 





18 







Shade 



27-9 



27-6 



-0-3 



0-7 





19 







Sun 



27-6 



280 



+ 0-4 



0-6 



0-54 



20 



30 



Shade 



27-8 



27-7 



-01 



0-4 





21 



30 



Sun 



27-7 



28-0 



+ 0-3 



0-5 





23 







Shade 



28-0 



27-8 



-0-2 



0-5 





0-7 



2-4 



4-4 



Makerstoun 



Mean Time 



of 



First Readme. 



21 



h. 



18 24 



25 45 



26 45 



28 10 



29 10 



30 30 



31 30 



33 



34 



35 30 



36 30 



21 



21 20 



38 

 39 



19 22 



23 30 



24 30 



26 15 



27 15 



28 40 



29 40 



31 20 



32 20 



6 



7 30 



8 30 



10 



11 



12 30 



13 30 



15 



16 



21 21 14 



15 30 



16 30 



18 



19 



20 30 



21 30 



23 



24 



In Sun 



or 

 Shade. 



Observation. 



Begun 



Sc. div. 



Ended 



Sc. div, 



Change 

 in 

 60'. 



Sc. div. 



Effect 



of 

 Sun. 



Sc. div. 



September 21, 1843. 



Sun 



27-8 



28-2 



+ 0-4 



0-6 





Shade 



28-1 



27-9 



-0-2 



0-8 





Sun 



27-9 



28-7 



+ 0-8 



11 



0-92 



Shade 



28-6 



28-2 



-0-4 



1-2 



Sun 



28-2 



28-9 



+ 0-7 



10 





Shade 



28-9 



28-7 



-0-2 



0-8 





Sun 



28-7 



29-2 



+ 0-5 



0-6 





Shade 



290 



28-9 



-01 



0-7 





Sun 



28-9 



29-6 



+ 0-7 



10 



0-90 



Shade 



29-6 



29-2 



-0-4 



11 



Sun 



292 



300 



+ 0-8 



11 





Shade 



30-0 



29-9 



-01 



0-9 





Sun 



29-9 



30-8 



+ 0-9 







Sun 



340 



36-3 



+ 2-3 







Shade 



37-0 



37-7 



+ 0-7 



1-5 



i 



Sun 



37-7 



39-9 



+ 2-2 



1-6 





Shade 



40-3 



40-9 



+ 0-6 



1-7 





Sun 



40-9 



43-3 



+ 2-4 



20 



>209 



Shade 



43-9 



44- 1 



+ 0-2 



2-5 





Sun 



44-1 



471 



+ 3-0 



2-8 





Shade 



47-7 



47-9 



+ 0-2 



2-5 



. 



Sun 



47-9 



50-4 



+ 2-5 







Sun 



55-9 



59-4 



+ 3-5 







Shade 



600 



60-2 



+ 0-2 



3-5 



i 



Sun 



60-2 



64-1 



+ 3-9 



3-7 





Shade 



64-7 



650 



+ 0-3 



3-6 





Sun 



650 



68-9 



+ 3-9 



•3-6 



1-3-56 



Shade 



69-0 



69-3 



+ 0-3 



3-5 





Sun 



69-3 



73-1 



+ 3-8 



3-6 





Shade 



73-7 



73-9 



+ 0-2 



3-4 





Sun 



73-9 



77-3 



+ 3-4 







Sun 



52-7 



57-8 



+ 51 







Shade 



58-2 



590 



+ 0-8 



4-3 





Sun 



590 



64-2 



+ 5-2 



4-7 





Shade 



64-9 



651 



+ 0-2 



50 





Sun 



651 



70-4 



+ 5-3 



51 



4-83 



Shade 



70-9 



71-2 



+ 0-3 



4-9 





Sun 



71-2 



76-3 



+ 51 



4-9 





Shade 



76-8 



76-9 



+ 0-1 



4-9 





Sun 



76-9 



81-8 



+ 4-9 







Dry thermometer 76 0, 2 ; wet thermometer 66° - ; Sun clear of cirri, although thin sheets are both above and below it. 

 Cirri approaching the Sun ; breeze. 49 m . Thin cirri occasionally on the Sun ; dry thermometer 76°-2 ; wet thermo- 



Sept. 8 d 2 h 35". 



Sept. 8 d 2>> 46 m . 

 meter 65°-4. 



Sept. 21 4 17 h 45 m . Streak of cirro-stratus to NE. ; sky reddish to E. 59 m . Streaks of cirro-strati near the Sun, but under it. 18 h 5*. 

 Cirro-strati almost touching the lower limb of the Sun ; at 8 m the Sun quite clear of the cirro-strati. 18 h 10 m . Barometer 30-210 in.; dry 

 thermometer 40°-8 ; wet thermometer 40°-7. 18 h 14 m . Misty cirro-strati from NE. to E. 18 h 17 m . Becoming hazy near the Sun, and little 

 patches of hazy cirri pass above and below it ; doubtless some of them pass over it, but they must be very small. 18 h 29™. Hazy-looking 

 near the Sun. 18 k 34 m . Scud moving from NE. across the zenith, and below the Sun. 18 h 39 m . Sky covered with thin scud, still the San 

 remains pretty free from it. 18 b 40 m . Barometer 30-225 in. ; dry thermometer 42 D -6 ; wet thermometer 42°-0. 



Sept. 21 d 19 h 21 m . Somewhat hazy-looking about the Sun, but no clouds ; streaks of cirrus to E. at 31 m . 19 h 34 m . Barometer 30-237 in.; 

 dry thermometer 47°-2 ; wet thermometer 46°-0. 



Sept. 2l d 20 h 5 m . A strip of hazy cirro-stratus on E. horizon. 20*> 18 m . Barometer 30-248 in. ; dry thermometer 49°-2 ; wet thermo- 

 meter 48°-l. 



Sept. 21 a 21 h 14 m . Rather hazy about the Sun. 



