After completing the second layer, stretch the third one, using the same holes as for the first layer.  This will make three layers, the first being hidden by the third while the second layer is at right angles to and between the first and third.  No weaving has been done up to this time, nothing but stretching and threading the cane through the holes.  The cane will have the appearance shown in Fig. 3.  The next thing to do is to start the cane across in the same direction as the second layer and begin the weaving.  The top or third layer strands should be pushed toward the end from which the weaving starts, so that the strand being woven may be pushed down between the first and third layers and up again between pairs.  The two first strands of the fourth layer are shown woven in Fig. 3.  During the weaving, the strands should be lubricated with the rind of bacon to make them pass through with ease.  Even with this lubrication, one can seldom weave more than half way across the seat with the pointed end before finding it advisable to pull the remainder of the strand through.  After finishing this fourth layer of strands, it is quite probable that each strand will be about midway between its two neighbors instead of lying close to its mate as desired, and here is where the square and pointed wedge is used.  The wedge is driven down between the proper strands to move them into place.

Start at one corner and weave diagonally, as shown in Fig. 4, making sure that the strand will slip in between the two which form the corner of the square in each case.  One more weave across on the diagonal and the seat will be finished except for the binding, as shown in Fig. 5.  The binding consists of one strand that covers the row of holes while it is held down with another strand, a loop over the first being made every second or third hole as desired.  It will be of great assistance to keep another chair with a cane bottom at hand to examine while recaning the first chair.  —­Contributed by M. R. W.

** Repairing a Cracked Composition Developing Tray [260]

Fill the crack with some powdered rosin and heap it up on the outside.  Heat a soldering-iron or any piece of metal enough to melt the rosin and let it flow through the break.  When cool, trim off the surplus rosin.  If handled with a little care, a tray repaired in this manner will last a long time.  The chemicals will not affect the rosin.  —­Contributed by E. D. Patrick, Detroit, Michigan.

** How to Lay Out a Sundial [261]

The sundial is an instrument for measuring time by using the shadow of the sun.  They were quite common in ancient times before clocks and watches were invented.  At the present time they are used more as an ornamentation than as a means of measuring time, although they are quite accurate if properly constructed.  There are several different designs of sundials, but the most common, and the one we shall describe in this article, is the horizontal dial.