1. Devices to keep railroad switches from becoming clogged with snow and ice;Shaw;Eng. News.,1906
2. Failure of steel ship-plates;Wilson;Engineering.,1914
3. Winter obstacles to transportation;Fawcett;Sci. Am.,1903
4. The problem of combating ice accumulation;Andrus;Aviation,1928
5. The serious menace known as ice on the plane;Neely,1928