Describes the use of the "Science Citation Index" in deciding whether to keep older basic science books that have failed to meet other criteria for collection retention. It is concluded that manual searching of the indexes proved feasible and reliable, while the lack of book titles on the online version reduced reliability of weeding…

Describes a study that compared the performance of two general approval plan vendors with that of two science and technology (sci/tech) specialty vendors in identifying sci/tech titles that matched a library profile. The areas discussed include overall coverage by vendors, representation of non-trade publishers, and difficulties in using approval…