New York: D. Van Nostrand Company, 1949. first thus. hardcover. 2 vol. 8vo. V1: 576pp. V2: 576pp. See pictures for synopsis. Vol 1.: Logarithmic Values, Vol 2.: Natural Values. Scarce copies as complete 2 volume set, NOT ex-library. #04522 HEAVY ITEM WILL REQUIRE EXTRA S/H.