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 these simple characters formulas might be constructed, expressive of the various relations between thoughts, and that through them inferences might be deduced, with the same freedom from error, as by the processes of geometry and algebra. But we must leave for the mind of the reflecting reader the entire subject, so imperfectly touched upon in the preceding paragraphs, and return to the books before us.

The philosophical works of Leibnitz are, in bulk, only a small part of the literary productions of a life devoted to almost the whole sphere of possible knowledge. Professor Erdmann has rendered good service to the thinking world by his edition (the most valuable of those referred to at the commencement of this Essay) of this class of the writings of the father of German speculation. While Leibnitz could on no subject write unphilosophically, yet there are sections of his works which may be extracted and combined for publication as more exclusively and profoundly philosophical, indicating not ripples, extended widely, perhaps, over the surface of thought, but the ocean-swell of an agitation that is far below. This department of his writings is scattered, without much attention to order, through the voluminous publication of Dutens, and is partly contained in the rare edition of his posthumous philosophical works by Raspe. Accordingly, while the life of Leibnitz is an epoch in the