Stafford Allen And Sons, Ltd., Boake, A. Roberts And Co., Ltd., Boots Pure Drug Co., Ltd., British Cellulose And Chemical MFG . Co., Ltd., British Cyanides Co., Ltd., British Drug Houses, Ltd., British Vegetable Products , Ltd., Burroughs, Wellcome And Co., J. M. Collett And Co., Ltd., Evans, Sons, Lescher And Webb, Ltd., Grays Dyes And Chemical Works, Hopkin And Williams, Ltd., Howards And Sons, Ltd., Johnson And Sons, Mfg. Chemists, Ltd., London Chemical Works, Ltd., May And Baker, Ltd., Thos. Morson And Son, Ltd., Pierson, Morrell And Co., Ltd.,