BAROMETRICAL AND METEOROUH; 1<\\ L oi'.SKK NATIONS 



No. VIII C and D was deduced from 3 days' tri-hourly observation 



May 29 to June 2, 1859, in Woodruff Valley," one of the arid deserts 

 of Utah, at an elevation of about (),()(>() feet above the level of the sea 

 temperature of these days was 55°. Fahrenheit; the mean force ot vaj 

 0.093 inch; the mean relative humidity was 29.1, and the mean weij 

 in one cubic foot of air was 1.08 grains troy. Nos. \ III C and D con 

 nearly, although not exactly, to No. VIII B. They give the unaltered 

 computed values. The cloudiness of the sky averaged 1.4, or, including 

 for the night, 1.3. The force of the wind averaged 2.4, while its direction 

 tween north, south, and west. 



After having thus stated the particulars in regard to each of the a 

 will give a more comprehensive view of the results, and have for that purj 

 the Table E. It is based upon the Tables B, ( !, and 1 >, but contains bate 

 all the hours when no direct observations have been taken, and correspoi 



tables. The columns headed weight of vapor in one cubic foot of air, arc deduced 

 from the mean values of temperature and relative humidity. Their values would 

 probably have been slightly different if the weight of vapor could have been deduced 

 for each single observation, as it has been done with the force of vapor and relative 

 humidity, but that would have required more time than I had at my disposition. The 

 column headed means contains the means of the values for the single hours as given 

 in the tables. 



