ing jars or mills. They have also in course of development pyrometer tubes for use with heat recording instruments. The O. Hommel Co. is continually taking on and develop- ing new features in the ceramic trades and bids fair to grow to still greater importance as one of the industries of Pitts- burgh. The general office is located at Carnegie, Pa., and axecutive office at 209 Fourth Avenue, Pittsburgh. THE KEYSTONE DRILLER COMPANY Robert Magee Downie was born on a farm near Valencia, Butler County, Pennsylvania, August 21, 1853. At the age of 22, while as yet there was no such device known as a well drilling machine on wheels, he learned that there was a method of sinking small test holes for coal, by hand, using a sapling as a spring-pole, to carry the drilling tools. With the proceeds of a winter’s school-teaching and the assistance of a neighbor he procured an outfit of spring-pole drilling tools and went into the business of exploring for bituminous coal. It was hard work. Five to ten feet of three inch hole was a fair day’s work for two strong men. He learned the theory and “art” of drilling wells; and he observed that the farmers sometimes used the abandoned test holes for water supply. With a set of larger tools he went into the business of drilling water wells, for which there was great demand; but he had trouble convincing his clients that a permanent and adequate supply of water could be gotten out of a 5 inch hole. The world had been accustomed since the days of Abraham to wells four or five feet in diameter. He had to guarantee his new-fangled well to produce “plenty of water or no pay.” Experience showed that the drilled well was more sanitary, could be cased securely against surface contamination and vermin; that it was more reliable be- cause it could be carried down to a second or third water- bearing stratum; that it was cheaper to make and safer for man and beast. It seemed that there should be an easier way. In 1878 Robert Downie built in his father’s farm yard, out of a heavy wagon truck, a second-hand boiler and small steam engine,