A letter addressed to the citizens of Baltimore generally, and exporting merchants and mechanics in particular : principally intended to invite their serious attention to the contemplated Brick Manufacturing & Exporting Company, and likewise to warn them of the dangers and evils likely to arise from the late unjustifiable combination of the Society of Brick Makers to raise the price of bricks : together with a refutation of the slanders and calumny disseminated by the members of that society and their emissaries against the patent brick kiln invented by S.R. Bakewell.