to know what could be the use or necessity of practising those vices. To clear up which, I endeavoured to give some ideas of the desire of power and riches; of the terrible effects of lust, intemperance, malice, and envy. All this I was forced to define and describe by putting cases and making suppositions. After which, like one whose imagination was struck with something never seen or heard of before, he would lift up his eyes with amazement and indignation. Power, government, war, law, punishment, and a thousand other things, had no terms wherein that language could express them, which made the difficulty almost insuperable, to give my master any conception of what I meant. But being of an excellent understanding, much improved by contemplation and converse, he at last arrived at a competent knowledge of what human nature, in our parts of the world, is