The Portuguese Ministry did not contest the right advanced on the part of Great Br i - tain in the latter part of this communication.

In Apr i l 1808, the British Minister was 1808 instructed by M r . Canning to state to the Portuguese Government, that in any treaty of alliance to be concluded with Portugal, he should have "to propose an article, sti-" pulating for the gradual disuse, and ulti-" mate and not distant abolition of the Trade ; " and that Great Britain expected that, so " long as it did continue, the Portuguese " should at least abstain from furnishing " slaves to other nations.5'*

Accordingly, by the 10th Article of the Treaty of Alliance, con eluded on the 19th Feb., 1810 1810, between Portugal and Great Britain,+ the sovereign of Portugal bound himself to " co-operate with H i s Britannic Majesty in " the cause of humanity and justice, by adopt-" ing the most efficacious means for bringing " about a gradual abolition of the Trade,

The British Government, following up its negotiations with the Portuguese Government for the immediate restriction of Slave Trade, obtained, on the 24th November, 1813, the issue of an Alvara, by which Portuguese slave-vessels were not allowed to carry more than five negroes to each two tons, and were obliged to have a medical attendant attached to them; and were required to furnish to the negroes on board the quantity of provisions regulated by the Alvara. The Alvara also prescribed the kind of provisions with which the negroes were to be fed.*

The 10th Article of the Treaty of Alliance of 1810 was understood in Great Britain, as authorising British cruizers to capture Portuguese slave ships found trading in prohibited parts : and British cruizers in con-

sequence captured a great many Portuguese trading vessels.