Show Tentative Plan To Dispose of U. S. Zinc Stock I WASHINGTON. April F. Tantatlre arrnncrmen's have been made by the war department with a committee of I the American Ztne Institute to dispose dis-pose of the government's surplus smH- j trr stocks under a plan similar to that srorksd out for ropp.-r and other materials. ma-terials. Members of te Institute eetnmlt- 1 tie n war dpnmant statement today to-day aaya. found thrt the rrrsnunsnt i sarplca was eonslderably leas than had aeeat anticipated. I |