a t work in this field and it might be useful to summarize and correlate their findings and advice, but since it seems evident that the best research in methods of teaching chemistry is actually going on in the class-rooms of all successful, inspiring, and keen teachers, the first steps that might be taken under this Bureau for the extension of chemical education would be to secure and publish descriptions of the methods employed in those schools where the results with students indicate the success of the method. It would seem highly desirable, indeed necessary, for the Committee on Chemical Education to seek the advice of the most successful teachers of chemistry as to the present needs in teaching, considering the problem from the viewpoint of secondary schools and of institutions of higher learning. In a matter of such import it is very needful to have the advice of competent persons not interested in the exploitation of any particular idea. The committee offers the above suggestions to the council for reference to the Committee on Chemical Education, in the belief that a plan somewhat as outlined would avoid many of the errors that might be made in initiating a more ambitious project requiring far greater funds. It would postpone for some time decision as to whether or not the Bureau as a whole need have a definite location, and such a plan would provide both the means and the time for the selection of such small staff as might ultimately prove desirable to carry on such work as the Bureau might ultimately perform with the greatest success for the extension of chemical education. CHARLES I,. PARSONS
Automotive Industry Depends Much on Grinding Machinery. The single generalpurpose emery wheel of the old-fashioned machine shop would he amazedsupposing i t had a consciousness-if i t could come back and see the family of ahrasive machinery that has taken its place in the modern monster automobile factories. Not only have the new grinders new shapes and uses, but they are made of new materials, horn of the electric furnace. At the recent meeting of the American Chemical Society in Detroit, Dr. Lowell H. Milligan of Worcester, Mass., told his colleagues of the importance of abrasives in literally grinding out automobiles. " It has been said that a Ford manufactured by former methods would cost a s much as a Rolls Royce d w s now, were it not for grinding," Dr. Milligan stated. I n 1904 there was not one grinding machine in the automobile industry. Today there are 68,000. Countless parts of an automobile are finished by grinding. The chemists and metallurgists have been continually making tougher and harder steels which cannot he satisfactorily machined, but must be shaped by grinding. "Abrasives are of service not alone as grinding wheels. Loose abrasives are used, suspended in grease or water, for grinding valves, for lapping piston pins and rings. crankshaft pins and hearings, and for surfacing plate glass. "Glued on the surface of polishing wheels, abrasives serve t o smooth and polish radiators, fenders, bumpers, and many other metal parts. Fine abrasives cemented on paper or cloth are used far various finishing operations, conspicuous among which is the smoothing and surfacing of lacquers on automobile bodies."-Science Service
