Analyzes a sample of over 4,700 orders for library materials at the University of California, Berkeley, in terms of the probability that the material will arrive and the factors that determine arrival. Models to evaluate the book ordering process are presented, and variables that may affect arrival time are discussed. (six references) (Author/LRW)

Describes a practical study to demonstrate trend analysis and several related statistical instruments that can be applied to library research, presents possible topic for full study, and substantiates author's view on future of libraries. An overall analysis of variance is presented and examples of data analysis are appended. (13 references) (EJS)