Collection of Scientific Catalogues

including Philip Harris, Third Edition, Catalogue of Scientific Instruments, Physics, c.1930, Townsend & Mercer Ltd Cataogue of Chemical & Scientific Apparatus & Chemicals, 1927, Catalogue of General & Industrial Laboratory Apparatus, Chas Hearson, includes a good section on microscopes including the Watson No.1 Van Heurck, c.1930, and chemical Aparatus, Standley, Belcher & Mason c.1930