PREFACE. Several years have elapsed since I first published the House Carpenters Assistant, which met with a ready sale of some seventeen hundred copies, but in consequence of the death of the publisher the work is now out of print. The object of the author is to revise the former work by omitting the treaties on mathematical instruments, to make room for additional matter that had been overlooked in the former work, in order to furnish house carpenters and builders with a new and easy system of lilies founded on geometrical principles for framing the most difficult L roofs for cutting every description of joints and for finding the sections of angular pieces at any point from a horizontal to a erpendicular, so that their sides shall be in the plane on the sides they are connected with for finding the form of the raking mould for a gable, to intersect with the horizontal mould at any angle diverging from a straight line the mitreing of circular mouldings the relative sizes of timbers...

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