In the case of Dr. Livingstone, rest meant merely change of employment, and while resting and recovering from fever, he wrote a large budget of long and interesting letters. One of these was addressed to the King of Portugal: it affords clear evidence that, however much Livingstone felt called to reprobate the deeds of some of his subordinates, he had a respectful feeling for the King himself, a grateful sense of the kindness received from his African subjects, and an honest desire to aid the wholesome development of the Portuguese colonies. It refutes, by anticipation, calumnies afterward circulated to the effect that Livingstone's real design was to wrest the Portuguese settlements in Africa from Portugal, and to annex them to the British Crown. He refers most gratefully to the great kindness and substantial aid he had received from His Majesty's subjects, and is emboldened thereby to address him on behalf of Africa. He suggests certain agricultural products--especially wheat and a species of wax--that might be cultivated with enormous profit. A great stimulus might be given to the cultivation of other products--coffee, cotton, sugar, and oil. Much had been done for Angola, but with little result, because the colonists' leant on Government instead of trusting to themselves. Illegitimate traffic (the slave-trade) was not at present remunerative, and now was the time to make a great effort to revive wholesome enterprise. A good road into the interior would be a great boon. Efforts to provide roads and canals had failed for want of superintendents. Dr. Livingstone named a Portuguese engineer who would superintend admirably. The fruits of the Portuguese missions were still apparent, but there was a great want of literature, of books. "It will not be denied," concludes the letter, "that those who, like your Majesty, have been placed over so many human souls, have a serious responsibility resting upon them in reference to their future welfare. The absence also of Portuguese women In the colony is a circumstance which seems to merit the attention of Government for obvious reasons. And if any of these suggestions should lead to the formation of a middle class of free laborers, I feel sure that Angola would have cause to bless your Majesty to the remotest time."