00375cam a22000977a 4500008004000000082001200040245009800052260005000150300000800200700006900208180718b1956 xxu||||| |||| 00| 0 eng d aYA00x42 aReport of a committee of enquirycby Department of Scientific and Industrial Research, United aLondonbHer Majesty's Stationery Officec1956 a3p. aUnited Kingdom. Department of Scientific and Industrial Research