ppet mo- of copper, in order to afford equal conductivity. He tion for effecting the feed. The apparatus is shown in also recommends iron conductors made of numerous the view boring a flywheel and facing up the periphery stranded wires. at the same time, and it is evident that there is a great «… … IMPROVED BORING AND FACING MACHINE. water, and finally rubbed with saw dust. This imme- the resistance of the air is dependent upon distance notable case, probably familiar to some of our readers, diately changes them to a brilliant color. If the brass occurred many years ago in Brittany, where the…
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