"The work was undertaken at the request of the Treasury during the Crimean war, but was not completed till April, 1857, and was primarily compiled ... to ascertain the practice in regard to the distribution of the proceeds of droits of the Crown and of Admiralty."--p.iii.
Includes data on droits seized on the capture of an enemy's fortress or possession; droits captured at sea; droits captured in port; practice during the Russian war of 1854, etc. etc.