May, Percy, 1886- The chemistry of synthetic drugs / Percy May and George Malcolm Dyson. - 5th ed., rev. and rewritten by G. Malcolm Dyson in consultation with Percy May. - 678 pages : illustrations ; 25 cm LCCN: 59004471 Nat. Bib. No.: GB59-10071 Subjects--Topical Terms: Chemistry, PharmaceuticalOrganic compounds--Synthesis National Library of Medicine Call No.: QV 744 / M466 1959