ATMOSPHERIC PRESSURE. 



195 



I 



Readings of tb 



e baromcLer and attached thermometer near and at Port Pou 



Ike, S 



uith Strait. 













September, 1860. 













Day of the 

 mouth. 



21. 



4 



6 



8 



10 



Midnight 



1 



29^75 



57° 



2 9'". 7 5 



57° 



29'°. 75 



61° 



29r75 



63^' 



29'". 75 



68° 







2 



.86 



78 































. . 



3 



.70 



65 



.70 



63 



.70 



65 



.70 



63 



.75 



66 









4 



.55 



62 



.55 



62 



.55 



75 



.55 



75 



.55 



73 



29'^55 



73° 



5 



















.80 



73.5 



.80 



73 









6 



.85 



56 



.85 



65 



.90 



66 



.95 



66 



.95 



66 



.95 



63 



1 



30.10 



07 



30.05 



53 



30.05 



60 



30.05 



62 



30.05 



47 









8 



.00 



71 



.03 



71 



.03 



68 



.03 



72 



.00 



68 





. . 



9 



29.85 



62 



29.80 



58 



29.80 



67 



29.75 



66 













. . 



10 



.50 



70 



.50 



67 



.50 



61 



.50 



66 



29.50 



65 









11 



.50 



70 



.50 



73 



.53 



63 



.55 



61 



.56 



55 



.55 



55 



12 



.65 



61 



.66 



60 



.67- 



58 



.67 



60 



.70 



65 



.75 



60 



13 



.90 



66 



.92 



58 



.93 



52 



.92 



60 



.92 



72 



.93 



73 



14 



.73 



72 









.70 



65 



.70 



68 



.73 



66 



.76 



66 



15 



.80 



68 



.80 



68 



.83 



74 



.77 



69 



.88 



74 



.84 



74 



16 



.80 



68 



.80 



70 



.80 



72 



.78 ■ 



59 



.80 



50 



.78 



65 



IT 



.80 



71 



.83 



65 



.80 



50 



— 





.82 



78 



.85 



70 



18 



.83 



62 



.83 



70 



.82 



70 



.90 



69 



.92 



65 



.92 



65 



19 



.90 



68 



.90 



66 



.94 



71 



.94 



78 



.94 



05 



.88 



53 



20 



.95 



70 



.95 



56 



.99 



72 



.90 



70 



.99 



70 



30.01 



65 



21 



30.18 



62 



30.20 



58 



30.20 



68 













.20 



74 



22 



.00 



64 



29.80 



52 



29.90 



51 



.88 



56 



.80 



71 



29.72 



61 



23 



29.48 



50 



.55 



61 



.35 



56 



■ .50 



49 



.52 



47 



.52 



77 



24 



.60 



70 



.60 



62 



.55 



68 



.55 



68 ■ 



.55 



73 



.55 



58 



25 



.75 



63 



.75 



72 









.75 



65 



.65 



79 



.67 



62 



26 



.78 



75 



.90 



79 



.80 



33 



.81 



32 



.95 



70 



.88 



62 



27 



.73 



24 



.82 



73 



.82 



87 











— 



.66 



64 



28 



.52 



29 







.60 



66 



.58 



72 



.55 



71 



.61 



70 



29 



.60 



18' 



.68 



20 



.68 



19 



.70 



13 



.60 



13.5 



.75 



21 



30 



.70 



25 



.70 



22 



.70 



19 



.70 



21 



.65 



20 



.61 



20 



Means of 

 30 values 



29.770 



60.6 



29.777 



61.5 



29.775 



61.7 



29.776 



62.1 



29.779 



63.7 1 



' Barometer placed on deck. 



