ON METHODS OF DETERMINING THE DRYNESS OF bTEAM. 



415 



Test with a Barrus Wire-drawing Calorimeter, June 5, 1894. 



Steam valve opened at llh. 25m. A.M. Barometer, 29-88 in. = 14-68 lb. per sq. inch. 

 Pressure in second chamber, about 4 in. of water, or •ll lb. per sq. in. Temperature 

 of saturated steam corresponding to pressure in second chamber taken at t3 = 21 3°. 



"While these calorimeter tests were made, three samples of boiler water 

 were taken from the gauge cock and three samples of steam condensed in 

 the copper woi'm. These were carefully analysed by Mr. Crighton, under 

 the direction of Professor Armstrong, F.R.S. The following are the 

 results : — 



