The truth about opium : $b being a refutation of the fallacies of the Anti-Opium Society and a defence of the Indo-China opium trade
Opium trade -- China -- History -- 19th centuryOpium trade -- India -- History -- 19th centuryOpium trade -- Great Britain -- History -- 19th centuryChina -- Commerce -- India -- History -- 19th centuryIndia -- Commerce -- China -- History -- 19th centuryChina -- Commerce -- Great Britain -- History -- 19th centuryGreat Britain -- Commerce -- China -- History -- 19th centuryOpium abuse