178 



Hourly Meteorological Observations, April 22 — 25, 1845. 







Thermometers. 



Wind 











- 



Gott. 

 Mean 

 Time. 



Baro- 

 meter 

 at 32°. 









Clouds, 









Dry. 



Wet. 



Diff. 



Maxi 

 fore 



mum 

 3 in 

 lO-". 



From 



Sc.:C.-s.:Ci., 



moving 



from 



Sky 

 clouded. 



Species of Clouds and Meteorological Remarks. 





(1. h. 



in. 



o 



o 



o 



lbs. 



lbs. 



pt. 



pt. pt. pt. 



0-10. 







22 19 



29-761 



36-1 



35-1 



1-0 



0-1 



0-0 



20 





0-2 



Very thin cirrous cloud to E. 







20 



754 



40-2 



38-1 



2-1 



0-1 



0-0 







0-1 



Id. 







21 



746 



45-2 



42-4 



2-8 











0-2 







22 



739 



50-7 



45-0 



5-7 



01 



0-1 



8 





1-5 



Linear cirri and haze to E. 







23 



724 



55-3 



47-8 



7-5 



0-3 



0-2 



7 





20 



Id. 







23 



704 



57-7 



49-8 



7-9 



0-5 



0-4 



7 





2-5 



Woolly and linear cirri to E. 







1 



693 



59-2 



51-4 



7-8 



0-6 



0-5 



7 



8: 



— : 



14 



3-0 



Patches of scud : woolly cirri and haze. 







2 



678 



59-0 



50-6 



8-4 



0-7 



0-7 



6 



— : 



— : 



14 



2-5 



Id. ; id. 







3 



663 



57-8 



49-2 



8-6 



1-0 



0-7 



7 





— • 



14 



3-0 



Woolly and linear cirri. 



e 



4 



647 



56-8 



49-2 



7-6 



1-2 



0-7 



7 



— : 



— 



14 



5-0 



Id. 



e 



5 



628 



57-2 



49-2 



8-0 



0-7 



0-5 



5 



— . 



— : 



16 



6-0 



Id. 



G 



6 



625 



53-7 



47-6 



6-1 



0-6 



0-4 



7 



— 



— : 



14 



8-0 



Woolly linear and diffuse cirri ; halo. 



e 



7 



624 



51-3 



46-6 



4.7t 



0-4 



0-2 



6 



— 



— 



14 



7-0 



Id. ; id. 



e 



8 



624 



45-4 



42-7 



2-7i 



0-4 



0-2 



7 



— 



— : 



14 



7-0 



Id. ; fog bank to E. 





9 



652 



42-2 



40-7 



1-5 



0-2 



0-1 



4 





8-0 



Id. ; id. 





10 



620 



39-8 



39-2 



0-6 



0-1 



0-1 



7 





7-0 



Id. ; id. 





11 



619 



38-3 



38-2 



0-1 



0-1 



0-0 







10-0 



Cirrous mass and haze. 





12 



625 



38-2 



381 



0-1 



0-1 



0-0 







10-0 



Fog; objects invisible at 100 yards. 





13 



29-614 



37-2 



37-0 



0-2 



0-0 



00 







100 



Fog ; objects invisible at 100 yards. 





14 



606 



36-8 



36-7 



01 



0-0 



0-0 







10-0 



Id. 





15 



598 



35-9 



35-7 



0-2 



0-0 



0-0 







10-0 



Id. 





16 



596 



35-6 



35-3 



0-3 



0-0 



0-0 







100 



Id. 





17 



587 



34-0 



33-8 



0-2 



0-0 



0-0 



22 





10-0 



Id.; 



objects invisible at 300 yards. 





18 



587 



33-4 



33-2 



0-2 



0-0 



00 



20 





10-0 



Id.; 



id. 200 yards. 





19 



592 



35-0 



34-8 



0-2 



00 



00 







10-0 



Id.; 



id. 250 yards. 





20 



597 



36-2 



360 



0-2 



0-0 



0-0 



8 





10-0 



Id., 



id. 500 yards. 





21 



601 



37-2 



37-0 



0-2 



0-1 



0-1 



10 





10-0 



Id., 



id. ^ mile. 





22 



601 



40-5 



39-8 



0-7 



0-2 



0-1 



7 





10-0 



Id.; 



id. 3 miles. 





23 



594 



44-3 



42-9 



1-4 



0-1 



0-1 



5 



4:9: — 



9-9 



Fog- cloud ; cirro-strati. 





24 



584 



46-0 



43-8 



2-2 



0-3 



0-2 



4 





3-0 



Cirri ; portion of a halo ; Cheviot invisible. 







1 



566 



50-6 



46-2 



4-4 



0-3 



0-3 



4 



— : — : 10 



50 



Id. 



id. ; patches of scud. 







2 



559 



54-0 



47-7 



6-3 



0-5 



0-5 



4 





50 



Id., 



id. ; id. 







3 



548 



52-7 



47-7 



5-0 



0-7 



0-7 



3 





4-0 



Id., 



id. ; cirrous haze. 



e 



4 



537 



52-6 



47-8 



4-8 



0-7 



0-7 



5 





4-0 



Id.; 



id. ; id. 







5 



537 



51-0 



46-7 



4-3 



0-8 



0-5 



3 





2-0 



Id. 



hazy to E. 







6 



531 



50-3 



46-6 



3-7 



0-5 



0-3 



3 





1-5 



Id. 



id. 



Q 



7 



519 



48-3 



45-3 



3-0 



0-5 



0-4 



3 





0-8 



Id. 







8 



541 



44-7 



43-3 



1-4 



0-3 



01 



2 





00 



Haze on horizon. 





9 



542 



41-7 



41-1 



0-6 



0-2 



00 



4 





00 



Id. 





10 



541 



39-7 



39-6 



0-1 



0-2 



00 



6 





10-0 



Fog commenced at 9'' oo"" from eastward. 





11 



546 



39-7 



39-6 



0-1 



0-1 



0-1 



7 





100 



Fog ; objects invisible at 200 yards. 





12 



548 



39-6 



39-5 



0-1 



O-l" 



0-0 







10-0 



Id. ; id. 100 id. 





13 



29-545 



39-3 



39-2 



0-1 



00 



0-0 







10-0 



Fog ; objects invisible at 100 yards. 





14 



541 



39-3 



39-2 



0-1 



00 



00 







10-0 



Id. 



id. 200 yards. 





15 



537 



38-8 



38-6 



0-2 



0-0 



00 



8 





10-0 



Id. 



; id. 200 yards. 





16 



527 



38-2 



38-0 



0-2 



0-0 



0-0 



15 





10-0 



Id. 



; id. 200 yards. 





17 



529 



37-9 



37-7 



0-2 



00 



0-0 







10-0 



Id. 



; id. 200 yards. 





18 



530 



37-7 



37-5 



0-2 



0-0 



0-0 



18 





100 



Id. 



; id. 200 yards. 





19 



528 



38-0 



37-8 



0-2 



0-0 



0-0 



28 





10-0 



Id. 



; id. 250 yards. 





20 



535 



38-4 



38-2 



0-2 



0-0 



00 



26 





10-0 



Id. 



; id. 300 yards. 





21 



530 



40-5 



40-3 



0.2 



0-0 



0-0 



4 





10-0 



Id. 



; id. 350 yards. 





22 



525 



43-4 



42-7 



0-7 



0-1 



0-1 



8 





100 



Id. 



; id. i mUe. 





23 



501 



45-1 



44-0 



1-1 



0-2 



0-1 



4 



6 



: — 



: — 



9-9 



Fog clearing off ; loose foggy scud. 



e 



25 



474 



50-7 



47-8 



2-9 



0-3 



0-2 



4 



12 



: — 



:24 



20 



Cumuli to S. ; woolly cirri ; very hazy on horizon. 0| 



1 



448 



58-6 



53-2 



5-4 



0-5 



0-5 



4 



14 



: — 



:24 



3-5 



Detached cumuli ; id. ; id. 





2 



434 



65-6 



55-3 



10-3 



1-5 



2-0 



15 



16 



: — 



: — 



8-5 



Cum. ; cir. and cir. haze ; electric-looking ; very 



haz^^ 

 The 



The 



direction of the wind is indicated by the n 



umber of the point of the con 



ipass, reckoning N. = 0, E. = 8, S. = 16, W. = 24. 



motio 



US of the three strata of clouds, Sc. (scud), ( 



"■.-s. (cirro-stratus), and Ci. (ci 



rrus), are indicated in a similar manner. 



• 



Ap 



fil 24<i Oh 40>°. It was found on trial that 



when the feather-vane was poi 



nting from the north, its index pointed to XNB. ; the index | 



was s 



et right ; t 



his erro 



r could 



have 



existec 



1 for a 



short 



peri 



od on 



ly- 











