["B" Correspondence: Baer, Mrs. John; Baker, Carlos; Barnes, John W.; William Barthman, Inc.; Baeys, Gwendolyn; Batt, Anna; Beckley, A.S.; G. Bell & Sons; Bell, Louis H.; Beloit College; Benson & Benson; Bove, Henry; Berman, Sam; Bertenshaw, Mrs. Robert B.; Bibow, Mrs. Rolf D.; Bishop, John; Blankit, Stan; Bobbitt, Mary R.; Bockmeyer, G.E.; The Book Exchange; Bradley, Glenn P.; Bradley, S.; Brandenburger & Davis; Bruidel, Kate; Broadenson, Lu; Brown, Joan; Brungart, Palmer; P. & P. Burg.]