Place paper so that the long edges will be parallel with the front of desk; bisect the back edge; place a point directly in front of it; with this point as a center draw a six inch horizontal line.

This line shall be the upper edge of an oblong six by eight and one-fourth inches; construct the oblong; on the right and left edges, beginning at upper edge, set off a one-fourth inch space; below it, eight one inch spaces; join all opposite points.

Continue upper and lower edges of fourth oblong indefinitely to right and left; open the dividers one inch and with the lower and upper right corners of fourth oblong as centers, draw arcs intersecting the extended lines to the right; with these intersections as cen-ters and a one inch radius, draw arcs above and below.

With the upper right corner of oblong No. 3 and the lower right of No. 5 as centers, and same radius, draw arcs intersecting arcs last drawn; connect with ruler the upper right corner of oblong No. 4 and upper intersection of arcs and from the upper right corner of oblong No. 4 draw a line diagonally upward to the right, one inch long; from the upper end of this line draw a one inch line, directly to the right; with the right end of this line as a center and a one inch radius, draw an arc intersecting the extended lines diag-onally downward to the right. In the same manner complete the lower and right sides of octagon.

On the left side of oblong No. 4 construct a similar octagon; on the right and left sides of all oblongs, except No. 4, construct one-fourth inch margins, cutting corners as in cube.

Transfer to a scale of one to one; cut, crease, fold and glue.