176 Mr. Nixon on the Theory of the [Sept. 



Corresponding natural number 19268*1 



Correction for 27-5 x 2-45 feet (Table II) 67-4 



.mioqwriC - > li9200»7^eet. 



scarcely differing three-fourths of a foot from the preceding 

 rigid method of calculation. Had the thermometers J)een gra- 

 duated as proposed, we should have had <n' n . v.-. 



ui'acitic Ucean i . I .#«. ♦ . 1«9'0 '': 



-Chimborazo t^. 1.<K* * 122-6 <- • 



Correction subtract ve . . !!^ . [ .{^ . .; t^'d f^t. 



df<5f?^9 4^^? c^^mple^^r^ subjoine4^4. Sd i.'. l^ 1 ^ 

 :^2 .-,,00 o«[ . , a ; iVo I "^ I ^-'^ •- ^^ > ^^ 



Air. Dew-pt. Pressures. 



♦Fort Thornton* .. (84°) 84-0 70 29-795 in*- Ltfe*-4,74l-43 

 Sugar-loaf hill .... (82.2) 82*2 70 27-527 -nu^^rq b43^7-59 



Diff. of att. therms. 1-8| 166-2 3-536356 = Log. of 343-84 

 Equa. for moisture ' 10:6; 0-828295 Coeff. of 17i34. 



Cor. sum of therms. . 176|. 4-364651 Log. of 2315-5 

 Correction for attached thermometers —4-7 



J^'^ •• 2310-8 



- -Correction for latitude 8° +6-3 



2317-1 

 Fort Thornton above the sea + 191-5 



Altitude of Sugar-loaf hill 2508-6 ft. 



No. IL P 



Pressures. 



Malham Tarn (60) 60 29-223 in. Log. 4657-25 



Great-close hillf {55} 55 28-903 4609-43 



Diff. of att. therms.. • 5 115 2-679610 Log. of 47-82 

 Equation for moisture 3^ 0-803878 CoefF. of 118-; 



1184- 3-483488 Log. of , 304-4 , 

 Correction for attached thermometers i2*5"l ; ; ; -.V^.j, 

 Correction for latitude 54 ........ •;» Q*3 J h<\ 



} ' ■ ■ ■ M>j 



291-( 



•6 

 -i^'fh Trigonometrical altitude of Great-close hil^ilfiI1525S8V^- 



;.'^';'^'iAlteu^e of Malham Tarn above the Iri§U,^^'^^.il §337/1. 



• Observations in Sierra I/eone, by Capt. Sabine. .)1 CiiOil ^^ ■ 



i* Acotdad bill of Gord^lc limettone one-third mile to the north-east of tilb Tani. 



