Official Letter of Francis Bulkeley Johnson, Esq., of the firm of Jardine,
Matheson & Co., of Hong Kong and China, Chairman of the Hong Kong Chamber
of Commerce, to Charles Magniac, Esq., M.P., the President of the London
Chamber of Commerce, respecting the charge of smuggling against the
British merchants in China, and giving particulars of the Indo-China Opium
trade.