Every effort has been put forth in the preceding chapters of this book to prepare the student for the all important work which is to follow - viz., the solution of pattern problems. It is always advisable in the study of any subject to be well grounded in its fundamental principles. For this reason a chapter on Linear Drawing has been prepared to meet the requirements of the student in pattern cutting, which is preceded by a description of drawing materials and followed by a solution of the geometrical problems of most frequent occurrence in his work. But the most important chapter is the one immediately preceding this, in which the theory of pattern cutting is explained, and which, if thoroughly understood, will render easy the solution of any problem the student may chance to meet.

The selection of problems here presented is made sufficiently large and varied in character to anticipate, so far as possible, the entire wants of the pattern cutter, and the problems are so arranged as to be convenient for reference by those who make use of this part of the book without previous study of the other chapters.

In the demonstrations, only the scientific phase of the subject will be considered; consequently, all allowances for seams, joints, etc., as well as determining where joints shall be made, are at the discretion of the workman. In some of the problems it has been necessary to assume a place for a joint, but if the joint is required at a place other than where shown, the method of procedure would be slightly varied while the principle involved would remain the same.

Each demonstration will be complete in itself, although references to other problems, principles, etc., will be made where such references will be of advan. tage to the student.

As stated in the preceding chapter, the problems will be classed under three different heads according to the forms which they embody - viz.; First, Parallel Forms; Second. Regular Tapering: Forms, and Third, Irregular Forms.