Mr. ——­ has received another letter from Parson S——­ upon the subject of more church building in Darien.  It seems that there has been a very general panic in this part of the slave states lately, occasioned by some injudicious missionary preaching, which was pronounced to be of a decidedly abolitionist tendency.  The offensive preachers, after sowing, God only knows what seed in this tremendous soil, where one grain of knowledge may spring up a gigantic upas tree to the prosperity of its most unfortunate possessors, were summarily and ignominiously expulsed; and now some short sighted, uncomfortable Christians in these parts, among others this said Parson S——­, are possessed with the notion that something had better be done to supply the want created by the cessation of these dangerous exhortations, to which the negroes have listened, it seems, with complacency.  Parson S——­ seems to think that, having driven out two preachers, it might be well to build one church where, at any rate, the negroes might be exhorted in a safe and salutary manner, ’qui ne leur donnerait point d’idees,’ as the French would say.  Upon my word, E——­, I used to pity the slaves, and I do pity them with all my soul; but oh dear! oh dear! their case is a bed of roses to that of their owners, and I would go to the slave block in Charleston to-morrow cheerfully to be purchased, if my only option was to go thither as a purchaser.  I was looking over this morning, with a most indescribable mixture of feelings, a pamphlet published in the south upon the subject of the religious instruction of the slaves; and the difficulty of the task undertaken by these reconcilers of God and Mammon really seems to me nothing short of piteous.  ‘We must give our involuntary servants,’ (they seldom call them slaves, for it is an ugly word in an American mouth, you know,) ’Christian enlightenment,’ say they; and where shall they begin?  ’Whatsoever ye would that men should do unto you, do ye also unto them?’ No—­but, ’Servants, obey your masters;’ and there, I think, they naturally come to a full stop.  This pamphlet forcibly suggested to me the necessity for a slave church catechism, and also, indeed, if it were possible, a slave Bible.  If these heaven-blinded negro enlighteners persist in their pernicious plan of making Christians of their cattle, something of the sort must be done, or they will infallibly cut their own throats with this two-edged sword of truth, to which they should in no wise have laid their hand, and would not, doubtless, but that it is now thrust at them so threateningly that they have no choice.  Again and again, how much I do pity them!