STRUCTURES 667
Impervious Concrete Mixtures--Star Stetten Cement--Medusa Waterproofing
Compound--Novoid Waterproofing Compound--Impermeable Coatings and
Washes: Bituminous Coatings; Szerelmey Stone Liquid Wash; Sylvester
Wash; Sylvester Mortars; Hydrolithic Coating; Cement Mortar Coatings;
Oil and Paraffine Washes--Impermeable Diaphragms; Long Island R. R.
Subway; New York Rapid Transit Subway.
Concrete Construction Methods and Cost