ABSTRACT
The system was so arranged that all the provinces of Peru paid something to the Incas in tribute, from the smallest to the most important. Another form of tribute was the supply of so many thousand loads of lances, another of slings and ayllos, and all other kinds of weapons that they used. Other provinces contributed cables to move the great stones, while others paid tribute in coca. All the provision and warlike stores that were contributed, were served out to the soldiers, or supplied to the garrisons which were formed in different parts, for the defence of the empire. The Incas so arranged the mining industry, that they extracted great abundance of gold and silver throughout the empire, and there must have been years when more than fifty thousand arrobas of silver and fifteen thousand of gold were produced.
