EACH District Office o f the United States Corps of E nginee rs is give n a research programme related to a particular p roblem in eng ineering construction. It is of interest to record that the St. P aul Engineer District Office of th e U pper Mississ ippi Valley Division of the United States Corps of Engincers has been assigned a comprehensive long-range research programme on permanently froze n ground. Work is in progress at a field laboratory near F airbanks, Alaska. Also, the la boratories

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... of th e U niversity of M innesota have provid ed fac ilities for determining the thermal properties of soils and insu lating mate rials. The object of thi s work is to fi nd solutions to the many problems which are encountered in permanent ly frozen ground in the course of general service construction in th e cold regions (H ighway i\llaga::,ine, April 1946).