



Hourly Meteorological Observations, April 3 — 7, 1845, 



171 







Thermometers. 



Wind. 











u 



e. 



Baro- 



METEE 



at 32°. 







Clouds, 



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



moving 



from 



Sky 

 clouded. 



Species of Clouds and Meteorological Remarks. 





Dry. 



Wet. 



Diflf. 



Maxi 

 fore 



It. 



mum 



i in 



10>". 



From 



h. 



in. 



o 







o 



lbs. 



lbs. 



pt. 



pt. pt. pt. 



0—10. 







1 



29-839 



38-0 



37-4 



0-6 



0-1 



00 



20 



4 : — : — 



100 



Misty scud ; slight mist (indistinct at 3 miles.) 





'2 



852 



400 



39-2 



0-8 



0-0 



0-0 



6 



4: — : — 



100 



Id. 



id. 





3 



860 



40-8 



39-6 



1-2 



0-3 



0-1 



6 





10-0 



Id.; 



id. 









865 



42-8 



40-6 



2-2 



0-2 



0-1 



6 



5 : — : — 



10-0 



Id.; 



rather homogeneous ; fog on horizon 





1 



872 



42-5 



40-5 



2-0 



0-2 



0-1 



6 





100 



Id. 



id. ; id. 





2 



876 



42-6 



41-1 



1-5 



0-4 



0-2 



4 





100 



Id. 



id. ; id. 





i3 



872 



43-1 



41-3 



1-8 



0-3 



0-2 



4 





100 



Id. 



id. : id. 





4 



871 



43-6 



42-0 



1-6 



0-2 



0-1 



5 





10-0 



Id. 



id. ; id. 





5 



877 



43-3 



41-6 



1-7 



0-3 



0-1 



2 



6 : — : — 



10-0 



Id. 



id. ; id. 





6 



889 



42-3 



40-5 



1-8 



0-2 



0-1 



5 





10-0 



Id. 



id. : id. 





7 



895 



41-4 



39-8 



1-6 



0-3 



0-2 



9 





100 



Id. 



; haze on horizon. 





8 



909 



40-8 



39-4 



1-4 



0-2 



0-2 



7 





10-0 



Id. 





9 



922 



40-2 



39-1 



1-1 



0-2 



0-1 



7 





10-0 



Id. 









933 



40-0 



38-9 



11 



0-1 



0-1 



4 





100 



Dark. 





1 



934 



39-8 



38-9 



09 



01 



0-0 



9 





100 



Id. 





2 



937 



39-1 



38-4 



0-7 



0-1 



0-1 



4 





10-0 



Id. 





3 



29-934 



39-0 



38-2 



0-8 



0-0 



00 



6 





10-0 



Dark. 





4 



938 



38-7 



38-0 



0-7 



0-2 



01 



16 





100 



Id. 





5 



924 



38-4 



37-7 



0-7 



00 



00 



16 





10-0 



Id. ; lightest rain. 





6 



923 



38-0 



37-2 



0-8 



0-0 



0-0 



16 





10-0 



Id. 





7 



921 



38-0 



37-0 



1-0 



0-1 



00 



10 





10-0 



Lighter. 





8 



919 



37-9 



36-9 



1-0 



0-0 



0-0 



13 



14: — : — 



10-0 



Nearly homogeneous scud. 





9 



922 



37-6 



36-6 



1-0 



0-0 



0-1 



13 





10-0 



Id. 





,10 



924 



38-1 



370 



1-1 



0-1 



0-0 



14 





10-0 



Id. 





;ii 



923 



38-0 



36-9 



1-1 



0-1 



00 



4 





10-0 



Id. 





'12 



924 



37-9 



36-6 



1-3 



0-1 



0-0 



4 





10-0 



Id. 





13 



924 



40-9 



39-0 



1-9 



0-2 



0-1 



12 





lO-O 



Id. 









918 



41-6 



390 



2-6 



0-2 



0-2 



6 



— : 14: — 



6-0 



Cirro-stratous scud ; cirro-strati ; cirrous haze. 



o 



I 



912 



45-7 



42-3 



3-4 



0-2 



0-1 



28 



— : 12:— 



4-0 



Cirro-cumulous scud ; woolly cirri ; haze. 



o 



2 



902 



47-8 



43-7 



4-1 



0-1 



0-0 



12 





3-0 



Woolly cirri ; cirro-strati ; haze. 



o 



3 



883 



50-5 



45-2 



5-3 



0-1 



0-0 



6 





7-0 



Loose cirri ; cir.-str. ; mottled cirri ; small cir.-cum. O | 



4 



874 



51-6 



45-6 



6-0 



0-5 



0-5 



7 





7-5 



As before ; cir.-eum. larger ; linear cirri radiating from NW. 



G 



5 



868 



50-7 



45-0 



5-7 



0-4 



0-2 



2 





3-0 



Id. 





'6 



875 



48-0 



42-9 



5-1 



0-4 



0-3 



2 



— : — : 



2-5 



Woolly and linear cirri ; hazy on horizon. 



o 



7 



878 



44-0 



40-7 



3-3 



0-4 



0-3 



2 





2-0 



Mottled, linear, and tuft cirri ; id.* 



o 



'8 



889 



41-1 



38-9 



2-2 



0-3 



0-0 



3 





1-5 



Cirri and haze ; purple to W. 





9 



902 



36-9 



36-0 



0-9 



0-1 



0-0 



3 





0-5 



Haze on horizon. 





10 



900 



33-0 



32-7 



0-3 



0-1 



0-0 



20 





0-0 



Clear. 





M 



902 



31-5 



31-1 



0-4 



0-1 



0-0 



20 





0-0 



Id. 





!l2 



905 



30-3 



30-2 



0-1 



0-0 



0-0 







0-0 



Id. 





Oi 



29-810 



51-0 



42-2 



8-8 



0-2 



0-0 







0-0 



Sunday — Beautiful day ; cloudless. 





2f 





57-3 



44-5 



12-8 





... 









Light wind sprung up about 5^. 





13 



29-792 



39-4 



39-1 



0-3 



0-7 



01 



1 





10-0 



Dark ; lightest rain. 





14 



787 



39-8 



39-4 



0-4 



0-0 



0-0 







10-0 



Id.; id. 





15 



781 



40-3 



39-9 



0-4 



0-0 



0-0 







10-0 



Id. ; id. 





16 



761 



40-7 



40-2 



0-5 



0-1 



0-0 







10-0 



Id. ; id. 





17 



754 



41-0 



40-4 



0-6 



0-0 



0-0 



17 





10-0 



Id. 





18 



747 



40-9 



40-4 



0-5 



0-0 



00 



20 



— : 6 : — 



10-0 



Cirro-stratous scud ; cirrous mass. 





19 



743 



41-6 



40-7 



0-9 



01 



0-0 



22 





10-0 



Dense mass of thick scud and cirro-strati. 





20 



733 



43-6 



42-4 



1-2 



0-0 



0-0 



24 



— : 4: — 



9-9 



Cirro-stratous scud. 





21 



727 



46-0 



44-1 



1-9 



0-2 



0-1 



18 



16: 9: — 



9-0 



Hazy scud ; loose cirri-cumuli ; very hazy. 



e 



22 



719 



49-7 



46-6 



31 



0-1 



00 



14 



10 : — : — 



9-8 



Scud ; loose woolly cirro-cumulo-strati. 





23 



• 705 



51-2 



47-2 



4-0 



0-1 



0-0 



20 





10-0 



Hazy scud and loose cirro-strati. 





: 



685 



54-1 



49-3 



4-8 



0-1 



0-0 



16 



— : 16 : — 



9-8 



Cirro-stratous scud and cirro-cumulo-strati. 





1 



658 



51-9 



46-8 



5-1 



0-3 



0-1 



6 



16: — : — 



3-0 



Loose scud ; slight haze. 



o 



The direction of the wind is indicated by the number 



of the point of the con 



npass, reckoning N. = 0, E. = 8, 8. = 16, W. = 2-i. 



The 



,)tions of the three strata of clouds, Sc. (scud), C.-s. (ci 



rro-stratus), and Ci. (ci 



r-rus), are indicated in a similar manner. 





1 April oi 6"^. Three swallows seen near the Observat 



ory. 







l^'' See additional ISIeteorological Notes after the Hour 



lir Meteorological Observa 



tions. 































