Purdue debris . are preferred by engineers, machinists, carpenters, mill-wrights and draughtsmen on account of their superiority in respect to accu-racy, workmanship, design and finish. Starrett Transits, Steel Tapes, Plumb Bobs and improved DraughtingApparatus are of special interest to technical students and graduates. Complete Catalogue of Fine Mechanical Tools will be sent toany one who asks for it. It is worth asking for. The L. S. Starrett Co., Athol, Mass., u. S. A.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectuniversitiesandcolle