WORKING IN METALS
By CHARLES CONRAD SLEFFEL
Wide Experience in Practical Shop Work and for 12 years Instructor in Metal Work at the Horace Mann School, Teachers' College, New York
Garden City New York
DOUBLEDAY, PAGE & COMPANY
1916
ALL RIGHTS RESERVED, INCLUDING THAT OF TRANSLATION INTO FOREIGN LANGUAGES, INCLUDING THE SCANDINAVIAN
COPYRIGHT, 1911, BY DOUBLEDAY, PAGE & COMPANY