318 METEOROLOGY. 
the country around each post of observation as, from elevation and инек circumstances, 
can be considered as having a similar climate. 
Fort Jones, the only very elevated post, (2,570 feet altitude,) when compared with Oregon 
City or Vancouver, both north of it, shows the influence of local situation on climate, and the 
impossibility of connecting the isothermal lines naturally in so undulating a country. 
The following table gives a comparison of the mean temperatures on a line of stations between 
latitude 46° and 48°, from the mouth of the St. Lawrence to Puget Sound, those points being 
selected which are nearest the great route of travel by the St. Lawrence, the lakes, and the 
proposed railroad route across the continent. 
: g 
popet прв uem 3 
Station. E E 3 Ж а 5 E $ E Authority, &c. 
z ey Berg ам. E = z 
4 x < z x Ф < E м 
"uw STF Feet. o о e ° о 
St. John’s, Newfoundland ...........] 47 33 | 52 43 140 32.3 54.0 43.8 23.2 38.3 | Templeman, Am. Jour. Sc. 
Quebec, 0. Е...... sese seesevesceece,| 40 49 | 71 16 300 10 38.6 65.3 44.0 13.3 40.3 | Dr. Sparks, Latour, Mp. 
Fo! p Nd. eco сво воть ..| 46 30 4 43 600 31 37.6 62.0 43.5 18.3 40.4 | U.S. A. Met. Register. 
Fort Wilkins, Wis 47 30 | 88 00 9 38,5 60,8 43.0 91.8 41.0 По. 
Fort Ripley, Міпп.................... 46 19 | 94 19 | 1,130 6 39.3 64.9 42.9 10.0 39.3 Do. 
Red Ите... cece ennt 50 15 | 9700 1 35.8 67.8 40.9 6.8 37.8 | Rept. Expl. Red river, 1858. 
Fort Clark, Neb 47 00 | 100 45 | 1,876 | 5-12 |....... 13.9 |........| Prince Maximilian. 
Fort Union, Мер...» cesses cots direc]. 48 00 |-104 001 9,008 [019] 44.1 70.1 Do. 
Fort Benton, Мер.................... 47 49 | 110 36 | 2,780 1 49.9 79.8 44.5 25.4 48.9 | Doty, N. P. R. R. Exp. 
Cantonment Stevens, W. T .........| 46 20 | 113 55 | 3,412 1 48.0 69.6 45.6 24.9 47.0 | Burr, №. P. R. R. Exp. 
Bitter Root valley, W. T.............| 46 35 | 113 55 | 3,984 14| 47.0 | 69.6 | 45.5 | 27.6 | 47.4 Do. 
Lapwai, W. T 46 97 | 11700 | 1,000? | 91 | 51.0 | 70.3 | 51.2 | 36.9 | 52.4 | Spalding, Wilkes's Expl. Exp. 
Fort Walla-Walla, W. Т.............| 46 03 | 118 25 | 1,396? | 14 | 51.9 | 73.1 | 53.6 | 34.1 | 53.2 | U.S. A. Met. Register. 
Fort Dalles, W. Т...... ...........! 45 36 | 190 55 | 300?| 34| 53.0 | 70.3 | 52.2 | 35.6 | 59.8. Do. 
жые; W.T 45 40 | 19230] 50 | 6 | 51.9 | 656 | 53.5 | 39.5 | 5.6 1. 
Astoria, Огероп...................... 46 П | 193 48| 50 19-49 51.1 | 61.6 | 53.7 | 42.4 | 52.2 Во, 
Steilacoom, W. T 47 10 | 19295| 200?! 53] 49.2 | 62.9 | 51.7 | 39.5 | 50.8 Do 
