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avern. I grew fearful of my own voice. At last I sank down exhausted, and slept. I awoke, and groped about once more. This occurred again and again. How often I lay down to sleep I cannot tell. Sometimes I thought of the skeleton I had stumbled over, and wondered if my bones, too, would here find their resting-place. Then I thought of the grand, lofty mountain overhead. What a stupendous monument! But what would I not have given for deliverance from it! (_To be continued._) [Illustration: THE HOUSE THAT JACK BUILT, BY OUR JAPANESE ARTIST] HOW TO MAKE AN ICE-BOAT. BY J. H. HUBBARD. The sport of sailing on the ice has within a few years attracted considerable attention on our northern rivers and lakes, and seems likely to increase. It is an amusement well adapted to big boys, being exciting, requiring skill, and certainly not more dangerous than skating. It is even more fascinating than yachting, without the danger which always attends the latter pursuit. A small ice-boat that a boy can build will sail ten to twenty miles an hour with a good wind. Some large ones, strange as it may seem, can sail, with a wind on the beam, actually faster than the wind which is blowing. This fact is attested by the highest scientific authorities. Having seen some unsuccessful attempts at ice-boats by boys in various places, I propose to tell you how to build one, at a small expense, that will sail well, and give you a great deal of sport. [Illustration: FIG. 1.] The directions and measurements here given are the result of careful experiments and some failures. Fig. 1 is an elevation, Fig. 2 a ground-plan of the frame, and Fig. 3 a section of a runner. Get a spruce plank, A, 12 feet long, 6 inches wide, 2 inches thick. This is the backbone of the structure. Cut near one end of it a hole two inches square to receive the foot of the mast. [Illustration: Fig. 2.] Take two oak cross-bars, E E, 8 feet long, 4 inches deep, 2 inches thick. The cross-bars are bolted to A, one foot apart, the forward one a foot from mast-hole. This distance is best. Next get one oak plank, C, 16 inches long, 3-1/2 inches deep, 2 inches thick. The hard-wood piece, D, is for tiller, 4 feet long, 2 inches wide, 1 inch thick. This is to be set into the top of plank C, and fastened there with screws. To each end of it is attached a rope, which runs over a sheave fastened to the cross-bar, C D, and the ropes, _l l_, constitute the ste
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