304 



Hourly Meteorological Observations, December 18 — 20, 1844. 







Thermometers. 



Wind. 











Gott. 

 Mean 

 Time. 



Baro- 

 meter 

 at 32°. 









c 



loudi 



> 





Dry. 



Wet. 



Diff. 



Maximum 

 force in 



l h . 10 m . 



Sc: 

 Prom 



C.-s. 

 ovin 

 from 



Ci., Sky 

 5 clouded. 



Species of Clouds and Meteorological Remarks. | 



d. h. 



in. 



° 



o 



«. 



lbs. 



lbs. 



pt. pt. 



pt. 



pt. 0—10. 





18 13 



29-870 



36-0 



35-4 



0-6 



0-1 



00 



2 





10-0 



Scud. 



14 



882 



36-2 



35-6 



0-6 



0-1 



00 







100 



Scud and cirro-strati. 



15 



911 



35-7 



35-3 



0-4 



00 



0-0 







100 



The same. 



16 



932 



34-6 



34-3 



0-3 



00 



00 







60 



Id. 



17 



957 



35-2 



34-9 



0-3 



0-0 



00 







100 



Id. 



18 



29-972 



36-1 



35-6 



0-5 



0-0 



00 



12 





100 



Id. 



19 



30-002 



35-3 



34-9 



0-4 



0-0 



00 



12 





7-5 



Id. 



20 



027 



35-7 



34-8 



0-9 



0-0 



0-0 



4 





9-5 



Id. 



21 



059 



35-6 



34-5 



11 



0-0 



00 



1 8: 



— : 



— 9-9 



Scud ; cirro-stratous scud. 



22 



077 



35-2 



34-3 



0-9 



0-1 



0-0 



2 8: 



24: 



— 10-0 



Loose scud on E. hor. ; cir.-cum.-str. ; rain to E. 



23 



101 



350 



34-3 



0-7 



0-0 



0-0 



31 8 



24- 



— 9-2 



As before ; stratus to E. 



19 



106 



35-3 



34-4 



0-9 



0-1 



0-0 



2 8 



24 



— 4-0 



Id. ; id. 



1 



100 



35-7 



34-8 



0-9 



0-1 



0-1 



1 





0-5 



Scud ; cirro-cumulo-strati on horizon ; stratus to E. 



2 



112 



38-7 



36-8 



1-9 



0-1 



0-0 



7 





0-5 



Id. ; id. 



3 



121 



38-4 



36-9 



1-5 



0-1 



0-0 



8 





0-5 



Cirro-strati and haze round horizon. 



4 



132 



36-1 



35-0 



11 



0-1 



00 



•20 





0-5 



Cirro-strati ; stratus to E. 



5 



153 



30-9 



30-7 



0-2 



0-1 



00 



20 





0-2 



Id. ; id. 



6 



161 



28-6 



28-3 





0-0 



00 



19 





0-5 



Id. ; id. 



7 



180 



29-4 



29-6 





0-0 



00 







0-5 



Id. ; id. 



8 



200 



27-6 







0-0 



0-0 



18 





0-5 



Cirro-strati to NE. 



9 



209 



26-5 







0-0 



00 



— 



— 



2 30 



Woolly cirri ; haze ; lunar corona. 



10 



220 



25-2 







0-0 



0-0 







30 



Cirro-strati ; cirri. 



11 



229 



25-5 



26-0 





0-0 



0-0 







1-5 



Id. ; id. ; lunar halo. 



12 



236 



26-7 



27-0 



... 



00 



00 







1-5 



Id. ; id ; id. 



13 



30-238 



26- 1 



26-3 





00 



0-0 







1-0 



Cirro-strati ; haze ; lunar halo. 



14 



242 



25-4 



25-4 





0-0 



00 



20 





0-5 



Haze ; lunar halo. 



15 



250 



25-2 



25-3 





0-0 



0-0 



19 





1-0 



Cirro-strati and haze on horizon. 



16 



252 



24-6 



24-7 





0-0 



00 







1-0 



Id. 



17 



252 



25-2 



25-2 





00 



0-0 







1-0 



Id. 



18 



257 



23-2 



23-3 





0-0 



00 



22 





1-0 



Id. 



19 



267 



21-5 







0-0 



0-0 



20 





01 



Streak of cirro-strati to E. 



20 



279 



22-2 



22-2 





00 



00 



20 





1-0 



Cirri, cirro-strati, chiefly to E. 



21 



293 



21-7 



220 





0-0 



0-0 







50 



Cirro-cumuli ; cirro-strati ; woolly and wavy cirri. 



22 



303 



22-7 



22-7 





00 



00 



— 



4 



— 6-0 



As before. 



23 



320 



25-3 



25-1 



0-2 



00 



0-0 



20 





2-0 



Id. 



20 



311 



26-4 



26-5 





0-0 



00 



17 





0-5 



Cirro-strati and cirrous haze on horizon. 



1 



303 



28-4 



28*0 



0-4 



00 



00 



20 





0-4 



Band of cirri to N. ; cirrous haze on horizon. 



2 



296 



29-4 



29-0 



0-4 



00 



0-0 



20 





01 



Haze on E. horizon. 



3 



288 



29-1 



29-0 



01 



00 



0-0 



20 





0-3 



Cirro-strati and haze on horizon. 



4 



292 



25-8 



26-0 





00 



00 



20 





1-0 



Haze and cirro-strati on horizon. 



5 



288 



24-4 



24-2 



0-2 



0-0 



00 



18 — 



— 



8 0-8 



Patches of cirri and cir.-str. ; dense haze on hor. 



6 



295 



21-9 



22-2 





0-1 



00 







0-5 



Haze on horizon. 



7 



293 



21-9 



21-7 



0-2 



0-1 



00 



17 





0-3 



Patches of cirri ; haze on horizon. 



8 



296 



22-3 



22-2 



0-1 



0-1 



00 







01 



Streaks of cirri ; haze ; small lunar corona. 



9 



310 



22-7 



22-6 



01 



0-1 



0-0 



18 





0-2 



Cirri ; cirrous haze. 



10 



311 



23-9 



23-7 



0-2 



0-1 



0-0 



22 — 



: 6 



:— 8-0 



Cirro-cumulous scud. 



11 



314 



25-7 



25-2 



0-5 



0-0 



00 



28 — 



: 5 



:— 9-5 



Cirro-stratous scud. 



12 



309 



25-8 



25-4 



0-4 



00 



00 



22 — 



: 5 



:— 2-0 



Cirro-cumulous scud. 



13 



30-305 



23-8 



23-7 



0-1 



00 



0-0 



20 — 



: 5 



:— 6-0 



Thin cirro-cumulous scud ; fine lunar corona. 



14 



301 



23-5 



23-3 



0-2 



0-0 



0-0 



24 





10 



Id. ; cirro-strati ? on E. hor. 



15 



309 



24-3 



24-0 



0-3 



0-0 



00 



22 — 



: 6 



:— 9-5 



Thick cirro-cumulous scud. 



16 



303 



24-2 



24-0 



0-2 



0-0 



00 



18 — 



: 6 



:— 9-0 



Id. 



17 



298 



237 



23-8 





00 



0-0 



20 





8-0 



Id. 



18 



293 



25-3 



25-0 



0-3 



0-0 



0-0 



21 





9-9 



Id. 



19 



292 



27-2 



26-9 



0-3 



0-0 



0-0 



15 





10-0 



Id. 



20 



292 



27-9 



27-5 



0-4 



00 



0-0 



2 





9-9 



Scud ; streak of sky on S. horizon. 



) 



The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S. = 16, W. = 24. The 

 motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Cir. (cirrus), are indicated in a similar manner. 



