The Instruments were exposed in s 

 houldaree with a S. W. exposure 25 

 ?et above the surface of a lake. 



Observations made at Tiiran Mall, Long. 

 read without correcti 



B —In the Renter retained, the Barometrical Observations should be entered as read wit 

 'and particularly 'as to time, the Pressure observations are of little value. The position and d. 



'3i, Let. 21° 

 and corrected c 



52', Alt. 3208 feet, During the month of April, 1851. 



tly in the Return forwarded. Unless the Barometer be perfectly trustworthy, and due attention 



-- be given to accurate read- 

 ted cannot be made, any set that may be deemed best may be selected 



1 



1 



o 



Observations made at Sunrise. 



Maximum Pressure observed at 10 A. M. 



Mini 



mum Pressure observed at 4 r. M. 



Observations made at Sunset. 



Observations^ at 10, a, 



Maximum and Mini- 

 mum Thermometer. 



n Sun's Rays. 



Rain 1 tauget, 



1 



S 



( 



j 



1 



a 



3 



Q 



s 



1 



II 



E<2 



Temperature. 



Wind. 



2 

 1 



|| 



fj 



Temperature. 



Wind. 



2 



I . 



ji 



Temper.,u,e. 



Wind. 



1 



i 



Temperature. 



Wind. 



2 

 I 



»| 

 11 



Temperature. 



Wind. 



a 



1 

 S 



i 



s 



J 



£ 



l 



Elevation. 



1 



s 



M 

 o 



1 

 5 



J, 

 1 



1 

 O 



u 



a 



i 



g 

 S 

 | 



S 



< 

 O 



O 



I 



& 



t 



s 

 o 



5 



5 



i 



c 



l 



1 



S 

 J 



6 



5 



I 



s 



1 



1 



1 



i 



1 



1 



O 



1 

 5 



O 



1 



5 



i 



Inches 



1 



2 

 3 



4 



s 



7 



s 



10 



11 



12 



13 

 14 



15 



16 

 17 

 18 

 19 



J'i 



21 



21 

 29 



Zf.'lJ 



27.15 

 26.97 



.92 

 .90 



.85 



.'80 

 .82 

 ,80 



J", l 

 26 <2 



78 



72 

 75 



72 

 76 



72 

 73 



76 

 78 



71.51 



78 



72 

 74 

 71 

 72 



77 

 72 



72 



74 

 812 



64 



67 

 64 



65 



60 



n!w. 



N.W. 

 W. 



w. 



w. 

 s. w. 

 s. w. 



2 



27.22 



27.10 



26.97 



.97 



.87 

 !s5 



86 



83 

 84 

 82 



79 



83 

 81 



84 



81 



83 



78 

 81 

 80 



66 

 69 



74 



64.5 

 63 

 61 



N.W. 

 W. 



w. 



w. 

 s. 



5 



27.17 



27.05 



20.95 

 .95 



.85 

 .80 



88 



92 

 90 



88 

 92 



86 

 87.5 

 86'. 



86. 

 85.5 

 87. 



72 



65.5 

 66. 



64. 



W. 



N. 

 W. 

 N. W. 



W. 

 W. 

 S. W. 



1 

 13 



27.17 



26.97 

 .92 



.80 

 .80 

 .80 



85 



86 

 85 

 86 



84 



84.5 

 82. 



82. 

 83! 



72 

 67 



63 

 62 



w. 



N. W. 

 W. 



w. 



w. 

 s. w. 

 s. w. 



2 



"2 



27.10 



26.97 



.92 



^82 



80 



81 

 82 

 82 



81.5 

 79. 

 78. 



77. 

 79. 



65 



64 



65 



62 

 63 

 61 



w. 



w. 

 w. 

 w. 



w. 

 w 

 s. w. 



5 



91.5 



91 'r. 

 90.5 



94.5 

 95. 



1002 



81.7 



817 



811.7 



79.2 

 79.5 

 80.5 



72 



72 

 72 



64 

 72 



77 1 



412 



102 



104 

 102 



1112 



101 





2 

 3 

 4 

 5 



6 



8 

 9 

 10 



11 



13 



15 



18 

 19 

 20 



22 



23 



25 



26 

 27 



29 



30 



296.29 



915 



897 



71-:. 





295.9: 



996 



954.5 



717.5 





295. .11 



947 



915 5 



718 



.. 7 



295.77 



902 



876.5 



699 







Sums. 



73.81 

































































Mean,. 



