id author title date pages extension mime words sentence flesch summary cache txt istl-2556 istl-2556 .html text/plain 7979 469 52 Some of this material is worth saving, and some is invaluable--but how can you separate the jewels from the junk in your science collection? Treasures in the Stacks: Seeking and Saving Jewels in Your Collection, is the title of a recent one-day program on the assessment, conservation and preservation of sci-tech books and other materials in library collections. He pointed out that a librarian's judgment on the possible afterlife of books from science collections is subjective. cache/istl-2556.html txt/istl-2556.txt