TRACKING THE RAILWAYS Available to Purchase

THE FUNCTION OF THE REFERENCE LIBRARIAN is to conduct requests for knowledge to known or to possible sources. He can sometimes do this by turning with arm‐length familiarity to a bay full of familiar friends —B.N.B., Besterman, Walford, Britannica, Willings ‐ and an increasing number and variety of bibliographical aids to specialized fields in current literature, but a request for wide, intensive and retrospective book coverage of a subject can set him dancing for a whole afternoon.