EditorialBritain's Queen Elizabeth II visits the Defence Science and Technology Laboratory (Dstl) at Porton Down science park near Salisbury, southern England, on October 15, 2020. - The Queen and the Duke of Cambridge visited the Defence Science and Technology La
EditorialCompend of mechanical refrigeration: a comprehensive digest of applied energetics and thermodynamics for the practical use of ice manufacturers, cold storage men ... and others interested in the application of refrigeration : Siebel, John Ewald, 1845-1919.