The stock for this exercise should be of good quality straight-grained pine. It should be 171/2 inches long, 31/4 inches wide, and 9/16 inch thick. Dress up the best side and best edge, as in Lessons 1 and 2, except that in jointing the edge you should place the piece in the vise, as shown in Fig. 31. Gauge to 3 inches wide and finish the second edge. Gauge to 1/2 inch thick and finish the back, or second side.

Lay off on the back, or second side, 1/2 inch spaces, leaving about 1/4 inch of waste at each end. Draw

Fig. 31. Jointing an Edge of a Thin Piece. Use the vise only when the piece is too thin to hold against the stop. Except for very light planing you should stand more at the end of the piece than the young man in this picture. Compare this position with that shown in Fig. 1.

lines with knife and try-square across the piece through each of these marks, as shown in Figs. 19 and

20. Test the lines carefully, as shown in Fig.23. Set the gauge to 21/2 inches and draw a line on the second, or back side. This line should be just 1/2 inch from the second, or back edge, and, if the piece is under size, set the gauge enough less than 21/2 inch-es to make the line just 1/2 inch from the back edge. Do not set the gauge to 1/2 inch and gauge from the back edge, but set the gauge so that when the block is against the face edge the spur will make a line just 1/2 inch from the back edge. If you have a lead pencil point in

Fig. 32. Lining an an Edge. Notice that the workman stands erect with the hands in an easy position. Compare the position of the try-square with that shown in Fig. 33.

your gauge (as shown in Fig. 154), use it instead of the spur in drawing this line. Draw gauge lines on each edge 1/8 inch from the face side.

With the knife and try-square draw lines on each edge from the ends of the lines which are on the back side across the edge to the gauge line which is 1/8 inch from the face side. Be careful to have the lines meet exactly at the edge. The piece may be held in the vise while drawing the lines on the edges, as shown

in Figs. 32 and 33. To set the try-square for drawing the lines on the edges, catch the point of the blade in the end of the line on the side and move the try-square up to the blade, as in lining around the rule (Fig. 42).

Fig. 33. Lining on an Edge. Reverse Position.

Fig. 34. Try-Square at the Side of the Bit