The phenomenal growth of science and technology As a complementary effort to its Data Tables has brought about a universal appreciation of the fact Series, TPRC published in 1967 a work entitled that present limitations in many technical develop "Thermophysical Properties Research Literature Re ments are often a direct result of the paucity of knowl trieval Guide. " This three-book work reported 33,700 edge on material properties. Engineering devclop references on seven thermophysical property groups ments in the years ahead will bc closely linked to the and about 45,000 materials. This Basic Edition sys research that is done today to contribute to a better tematically covered the world's unclassified literature understanding of the properties of matter, of which published essentially between 1920 and mid-1964, in thermophysical propcrties constitute a major segment. many instances going much earlier. While research on the properties of materials con The present work, referred to as Supplement I to tinues, adequate steps are not being taken to ensure the Basic Edition, reports an additional 26,000 refer that this invaluable body of information be coordi ences on sixteen thermophysical properties of 20,000 nated, synthesized, organized, and disseminated to materials, covering the years from mid-1964 to 1971. the ultimate user, namely, the individual scientist and An additional 9,000 synonyms and trade names are engineer. cross-referenced to assist the user in identifying the material or substance of interest.