Moral relations of Slavery--Relations of the consumer of Slave labor products to the system--Grand error of all Anti-Slavery effort--Law of _particeps criminis_--Daniel O'Connell--_Malum in se_ doctrine--Inconsistency of those who hold it--English Emancipationists--Their commercial argument--Differences between the position of Great Britain and the United States--Preaching versus practice by Abolitionists--Cause of their want of influence over the Slaveholder--Necessity of examining the question--Each man to be judged by his own standard--Classification of opinions in the United States, in regard to the morality of Slavery--Three Views--A case in illustration--Apology of _per se_ men for using Slave grown products insufficient--Law relating to "confusion of goods"--_Per se_ men _participes criminis_ with Slaveholders--Taking Slave grown products under _protest_ absurd--World's Christian Evangelical Alliance--Amount of Slave labor Cotton in England at that moment--Pharisaical conduct--The Scotchman taking his wife under protest--Anecdote--American Cotton more acceptable to Englishmen than Republican principles--Secret of England's policy toward American Slavery--The case of robbery again cited, and the English Satirized--A contrast--Causes of the want of moral power of Abolitionists--Slaveholders no cause to cringe--Other results--Effect of the adoption of the _per se_ doctrine by ecclesiastical bodies--Slaves thus left in all their moral destitution--Inconsistency of _per se_ men denouncing others--What the Bible says of similar conduct. HAVING noticed the political and economical relations of slavery, it may be expected that we shall say something of its moral relations. In attempting this, we choose not to traverse that interminable labyrinth, without a thread, which includes the moral character of the system, as it respects the relation between the master and the slave. The only aspect in which we care to consider it, is in the moral relations which the consumers of slave labor products sustain to slavery: and even on this, we shall offer no opinion, our aim being only to promote inquiry.