cent of the total amount of am-monia in the air; at 68°, 4 per cent; at 59°, 6 percent; at 50, 11 per cent, and finally, at 41°, 19 peroent. From this it appears that, the lower the tem-perature, the greater is the amount of ammoniadissolved. SHEPHABDB IMPROVED CHURN.We illustrate herewith a churn… … into violent agitation, while swift currents are set up and in-stantly broken, so that the butter is brought, it is claimed,with great rapidity.The body of the churn is formed of ten staves, flat on their SPAYDS RAILWAY SWITCH SIGNAL By means of the simple arrangement of crank and bevelgearing…
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