VOL. 



LXIX.] 



PHILOSOPHICAL TRANSACTIONS. 



597 



A Table of the elevation of countries above the surface of the sea, at each 100 mites of length up the 

 course of t tie principal rivers in the world, as far as they extend ; by computation from the principles 

 laid down in this treatise. 



XXXf^III. Extract of tivo Meteorological Journals of the Weather, observed 

 at Nain, in 57° North Latitude, and at Okak, in 57° 30', North Latitude, 

 both on the Coast of Labrador e. Communicated by Mr. De La Trobe. p. 657. 

 The thermometer, of Fahrenheit's scale, was observed at 8 in the morning, 



at noon, at 4 in the afternoon, and at 8 in the evening. The barometer, whose 



scale is French measure, was observed at 8 in the morning, and at 8 in the 



evening. 



Months. Thermomet. atNain. Barometer at Nain. Thermomet. at Okak. 



1777 



August . . 

 Septemb. 

 October . 

 Novemb. 

 Decemb. 



1778 

 January . 

 February 

 March , . 

 April . . . 



May 



June . . . . 

 July ... . 

 August . . 

 Septemb. 



High 



7& 

 72 

 51 .0 

 41 .0 



31 .0 



18 .0 



32 .0 

 27 .0 

 49 .0 

 6S .0 

 77 .0 

 82 .0 

 74 .0 

 69 .0 



Lowest Mean. 



36''.0 

 27 .0 

 12 .0 



— 8 .0 

 -26.0 



— 30 .0 



-27 .0 

 -25 .0 



— 8 .0 

 29.0 



33 .0 



34 .0 

 40 .0 

 34 .0 



52<'.3 

 43 .6 

 30 .2 

 15 .4 

 10.3 



— 12 .2 

 -10 .7 



High. I Lowest Mean. 



Mean of all. , 



28.3 



28.5^ 



28.7| 



28.9 



28.5^ 



28.5 



28.6 



28.10J 



28.6^ 



28.5J 



28.6 



28.3J 



28.5 



28.0 



27.61 



27.61 



26.11^ 



26.9 



26.3 



27.3 



27.2| 



27.6 



27.7 



27.4 



27.81 



27.5i 



27.10 



27.10 

 28.04 

 28.01 

 28.00 

 28.30 



28.45 

 28.76 

 27.40 

 28.43 

 28.75 

 28.00 

 28.01 

 2S.00 

 28.20 



28.2 



High Lowest! Mean. 



74''.0 

 68 .0 

 48 .0 

 39 .0 

 32 .0 



16.0 

 34 .0 

 32 .0 

 53 .0 

 65 .0 

 73 .0 

 ,S1 .0 

 72 .0 

 53 .0 



36°.0 

 21 .0 

 13 .0 



— 5 .0 



— 28 .0 



— 27 .0 

 -25 .0 



— 18 .0 



— 10 .0 

 27 .0 

 31 .0 

 36.0 

 41 .0 

 32.0 



52''.0 

 43 .9 

 30 .0 

 17.5 

 4.2 



-11 .0 

 -9.2 

 6.5 

 28 .5 

 37 .5 

 45 .7 

 51 .3 

 52.0 

 43 .0 



32 :/ 



