323 (#419) ############################################ TED MY TESTING OF WOOLS, TOPS AND YARNS copper mine may be found and the gold mine is more than likely to be discovered occasionally. Perhaps it should here be noted that the introduc- tion of the laboratory into the works will immediately bring up the system of weights and measures to be employed. If the laboratory is working in Centigrade and the works in Fahrenheit, for example, serious mistakes are inevitable. ** * * * * Tags The laboratory should under no circumstances be limited to normal chemical and physical testing. Im- portant as this testing is, it is not nearly so important as much of the testing as yet only at its birth in which the technologist is at least as important as the scientist. The Textile Industries have much more need of the adoption of scientific methods throughout all the pro- cesses of manufacture than of particular scientific knowledge. No detailed reference can be made here to the equipment of a mechanical laboratory, but hardly second to the above equipment comes that of such a laboratory. A worsted drawer should investigate his tops and their resultant yarns ; a spinner should consider his rovings; and a manufacturer should require specific yarns, and his spinner deliver these to him. In addition it should be possible to adjust the finer parts of machines and to carry out experimental variations. »0» 7 unkt UUTA 323