10 



METEOROLOGY. 



to that of Rochester or of any part of western New York, Michigan, Wisconsin, or Minnesota, 

 as shown by the annexed table. 



The two latter are the warmest points recorded in their States. 



Laperai, Kooskooskia valley, latitude 46° 27', longitude 117°, altitude 1,000 feet; 2| years' 

 observations for temperature gives: spring, 51.0; summer, 70.3; autumn, 51.2; wintei", 36.9; 

 year, 52.4. 



Walla- Walla, latitude 46° 03', longitude 118° 25', altitude, 600 feet; 1^ years: spring, 51.85; 

 summer, 73.06; autumn, 53.59; winter, 34.11; year, 55.15. Dalles, latitude 45° 36', longitude 

 120° 55', altitude, 200 feet; 3^ years: spring, 53.00; summer, 70.36; autumn, 52.22; winter, 

 35.59; year, 52.79. Of these, the mean may represent the climate of the Great Plain and of 

 the valleys connected with it up to latitude 49°, which are about of the same or a lower eleva- 

 tion, giving us: for spring, 51.95; summer, 71.24; autumn, 53.00; winter, 35.63; year, 52.66. 

 The following places may be compared with this or with each separately: Paris, (France,) 

 latitude 48° 50', spring, 50.6; summer, 64.5; autumn, 52.2; winter, 37.8; year, 51.3. 

 Sebastopol, latitude 44° 36': spring, 51.6; summer, 70.6; autumn, 53.7; winter, 35.9; year, 

 53.00; and the other places in southern Russia already compared with Nebraska. 



Vienna, (Austria). 



Philadelphia 



Washington City . 

 St. Louis, Missouri 

 Cincinnati, Ohio.. 



Latitude. 



48 13 

 39 56 

 38 53 



38 40 



39 06 



Spring. 



51.6 

 51.8 

 65.8 

 64.1 

 53.7 



Summer. 



69.4 

 73.6 

 76.3 

 76.2 

 74.0 



Autumn. 



61.2 

 54.1 

 56.4 

 55.4 

 53.9 



Winter. 



31.9 

 32.9 

 36.1 

 32.3 

 33.7 



Year. 



51.0 

 53.1 



56.1 

 54.5 

 53.8 



With respect to moisture, no records exist for Laperai, but the same remarks may be applied 

 as are made on Bitter Root valley; Walla- Walla and the Dalles, however, are drier in climate, 

 as shown by the records. Fort Walla-Walla, IJ year's observations: spring, 6.40; summer, 2.85, 

 autumn, 4.54; winter, 7.10; year, 20.89. Dalles, 3^ years: spring, 2.63; summer, 0.42, 

 autumn, 4.16; winter, 7.11; year, 14.32. Mean: spring, 4.51; summer, 1.63; autumn, 4.35; 

 winter, 7.11; year, 17.60. 



Taking either the mean or the lowest as the average for the whole of the Great Plain, we 

 find that they compare favorably with Nebraska, and, consequently, with southern Russia, while, 

 as we have seen, they surpass both in temperature. Actual experiment has shown the perfect 

 success with which nearly all crops of the middle tlnited States can be cultivated in the 

 Walla-Walla valley, and at several other points near the Great Plain. Compared with other 



