Very Good+ Hardcover Plenum 1983. Book. Very Good+. Hardcover. 8vo - over 7¾" - 9¾" tall. 365 pages, illustrated. "The rapidly expanding use of very low temperatures in research and high technology during the last several decades and the concurrent high degree of activity in cryogenic engineering have mutually supported each other, each improvement in refrigeration technique making possible wider opportunities for research and each new scientific making possible wider opportunities for research and each new scientific discovery increasing a need for a refrigerator with special features. In this book Professor Walker has provided up with an excellent exposition of the achievements of this period, the fundamental principles involved, and a critical examination of the many different cryogenic systems which have led to a new era of low-level refrigeration." VERY GOOD+ HARDCOVER, lettering is bright on the spine, blue cloth covers..