OCR Text |
Show To Manufacture Optical Glass. The manufacture of American optical op-tical glass is about to be inaugurated on a commercUl basis, a large factory having been erected by an optical firm of Rochester, N. Y., which, it is said, will be equipped to make all kinds of j lenses from the tiny glass used In i the microscope to that of the search- i i light measuring several feet in diame- i ter. The first effort in this direction j was made about twenty-five years ago,' I . and the effort was a failure and was j abandoned. The latest effort in the ; : manufacture of this glass was begun t : experimentally by the Rochester firm J a few years ago, and when the war broke out this had just demonstrated j Its success, so that its expansion I would have come along in the regular i ' ordf of th'ngs, but the necessity for j a Plant of this kind in this country 1 has forcibly demonstrated by the war, I , w,hlch has completely cut off the bud- , Ply of optical glass, which came hero- i tofore from one or the other of the ! belligerent countries. i |