Professor GEORGE WINTER, of Cornell University, New York, writes : In April, 1946, the American Iron and Steel Institute published the first American Specification for the Design of Light Gauge Steel Structural Members, which is nationally recognised in the United States as the governing code for cold formed structural sections. During the five years of its existence hundreds of millions of square feet of light gauge steel roof deck, wall and floor panels, and many thousands of tons of cold formed steel framing have been erected to this specification. The research work which resulted in this code has been carried out continuously since 1939 at Cornell University under the writer’s direction, and is still in progress. A second, greatly expanded edition of the specification is now in preparation.
For this reason the writer was greatly interested