ng of |18, an annual saving of over The two arms of each derrick are of different Upon a base carried on wheels, so as to be capable $5,000. Owing to the more uniform cutting of the lengths, one being long enough to handle skips clear of movement when it is desired, is mounted a vertical across the… … Mr. Geo. F. Kunz, writing ed is over the Melo rapids in to the American Journal of TWO ASM DEBBICE-CHICAGO DBAINAOE CANAL. the Upper Andes, and be- Science, says : In July, 1894, tween the two sides ot a a new locality of true emeralds was discovered by canon, which is situated 10,000 ft. above the…
Gas · Munn · Aluminum · Patents · Cents · Scientific American · Tools · Perspective elevations · Express money · Heat units · American supplement · Gas engine · Pneumatic tool · Horse power · Cold storage · Wheat flour
Internet Archive · Public domain (published before 1931). Free to use for anything.