W. L. HOWARD
R. H. TAYLOR
A. H. HENDRICKSON
*E. L. OVERHOLSER
W. P. TUFTS
W. L. SWEET
G. L. PHILP
‡V. W. HOFFMAN
M. N. WOOD
‡ In military service.
† In co-operation with office of Public Roads and Rural Engineering, U.
S. Department of Agriculture.
* Exchange professor from Cornell University for 1918-19.