WASHING AND GRADING SAND FOR CONCRETE. ITT. 
draws attention to a paper by Mr. H. C. Clarke’ in Vol. xiv. 
of the Transactions of the American Society of Engineers, 
in which he reported that 107 of loam, used with clean 
sand and Rosendale cement, did not decrease the strength 
PROF. SHERMAN 
4 PART OF LEMMENT To 3 OF SAND & LOAM 
TENSILE STRENLTH I LBS PER SQ. INLH 
ALE JIN MONTHS 
1 Engineering News, 19tn Nov., 1903. 
