01172cam a22003011 4500 e 19000138 DLC 20260227111210.0 850130s1919 dcu f000 0 eng c e 19000138 (OCoLC)11638116 Library, U.S. Bur. of Education MnSP DLC premarc UB363 .A3 no. 21 United States. Federal Board for Vocational Education. Mathematics for the engine lathe. Issued by the Federal Board for Vocational Education in cooperation with the Surgeon General's Office and the Bureau of War Risk Insurance. January, 1919. (Trial edition) Washington, Govt. Print. Off., 1919. 28 p. 23 cm. Rehabilitation monograph. Joint series, no. 21 At head of title. Unit course--Machine shop practice VII. Prepared by Mr. R.W. Burnham.--p. 7. Machine-shop practice. Lathes. Burnham, Reuben Wesley, 1873- United States. Surgeon-General's Office. United States. Bureau of War Risk Insurance. 20286 20286