Latitude and Temperature in Barometric Hypsometry, 155 



Log G is found from the latitude in Table II., without interpolation. 



Y, v ; V v v x ; Y 2 , v 2 are found from the nearest number of thousand feet, 

 two hundred metres, or hundred toises in H, h, H x , h v H 2 , k 2 respectively, by 

 •Table II. without interpolation. 



Make fresh observations when the temperature does not decrease about 4° F., 

 or 2° Cent, for a fall in the barometer of 1 inch, or 25 millimetres respectively. 



Table II. 











Feet. 



Metres. 



Toise3. 



Lat. 



LogG. 



Lat. 



LogG. 



































^1000. 



v, V. 



-i-fOO. 



v v H r 



-M00. 



%> v 2 . 



0° 



1-827 28 



45° 



1-826 14 















00 







00 



1 



28 



46 



10 



1 







2 



00 



1 



0-0 



2 



28 



47 



06 



2 







4 



o-o 



2 



00 



3 



28 



48 



1-826 02 



3 







6 



01 



3 



0-0 



4 



27 



49 



1-825 98 



4 



1 



8 



G-l 



4 



01 



5 



1-827 27 



50 



94 



5 



1 



10 



0-2 



5 



01 



6 



26 



51 



90 



6 



2 



12 



0-2 



6 



0-1 



7 



25 



52 



86 



7 



2 



14 



0-3 



7 



0-2 



8 



24 



53 



83 



8 



3 



16 



0-4 



8 



0-2 



9 



23 



54 



79 



9 



4 



18 



0-5 



9 



0-3 



10 



1-827 22 



55 



1-825 75 



10 



5 



20 



0-6 



10 



0-3 



11 



20 



56 



71 



11 



6 



22 



0-8 



11 



0-4 



12 



19 



57 



68 



12 



7 



24 



0-9 



12 



0-4 



13 



17 



58 



64 



13 



8 



26 



11 



13 



0-5 



14 



15 



59 



61 



14 



9 



28 



1-2 



14 



0-6 



15 



1-827 13 



60 



1-825 57 



15 



11 



30 



1-4 



15 



0-7 



16 



11 



61 



54 



16 



12 



32 



1-6 



16 



08 



17 



09 



62 



50 



17 



14 



34 



1-8 



17 



0-9 



18 



07 



63 



47 



18 



16 



36 



2-0 



18 



10 



19 



04 



64 



44 



19 



17 



38 



23 



19 



11 



20 



1-827 02 



65 



1-825 41 



20 



19 



40 



2-5 



20 



1-2 



21 



1-826 99 



66 



38 



21 



21 



42 



28 



21 



1-4 



22 



96 



67 



35 



22 



23 



44 



3-0 



22 



1-5 



23 



94 



68 



32 



23 



25 



46 



3-3 



23 



1-6 



24 



91 



69 



29 



24 



28 



48 



36 



21 



1-8 



25 



1-826 88 



70 



1-825 27 



25 



30 



50 



39 



25 



1-9 



26 



84 



71 



24 



26 



32 



52 



4-3 



26 



20 



27 



81 



72 



22 



27 



35 



54 



46 



27 



2-2 



28 



78 



73 



20 



28 



38 



56 



49 



28 



2-4 



29 



75 



74 



17 



29 



40 



58 



5-3 



29 



2-6 



30 



1-826 71 



75 



1-825 15 



30 



43 



60 



5-7 



30 



2-8 



31 



68 



76 



13 



31 



46 



62 



6-0 



31 



2-9 



32 



64 



77 



12 



32 



49 



64 



6-4 



32 



3-1 



33 



61 



78 



10 



33 



52 



66 



68 



33 



3-3 



34 



57 



79 



08 



34 



55 



68 



7-3 



34 



3-5 



35 



1-826 53 



80 



1-825 07 



35 



59 



70 



7-7 



35 



3-8 



36 



49 



81 



06 



36 



62 



72 



8-1 



36 



4-0 



37 



46 



82 



04 



37 



65 



74 



86 



37 



4-2 



38 



42 



83 



03 



38 



69 



76 



91 



38 



4-4 



39 



38 



84 



03 



39 



73 



78 



9-6 



39 



4-7 



40 



1-826 34 



85 



1-825 02 



40 



77 



80 



10-1 



40 



4-9 



41 



30 



86 



01 



41 



80 



82 



106 



41 



5-2 



42 



26 



87 



01 



42 



84 



84 



111 



42 



5-4 



43 



22 



88 



00 



43 



89 



86 



11-6 



43 



5-7 



44 



18 



89 



00 



44 



93 



88 



12-2 



44 



5-9 



45 



1-826 14 



90 



1-825 00 



45 



97 



90 



12-7 



45 



6-2 



