CHAPTER I
HOW TO CROSS A STREAM ON A LOG
How to Build a Logomaran
THERE is a widespread notion that all wood will float on water, and this idea often leads to laughable errors. I know a lot of young backwoods farmers who launched a raft of green oak logs, and were as much astonished to see their craft settle quietly to the bottom of the lake as they would have been to see the leaden sinkers of their fish-lines dance lightly on the surface of the waves. The young fellows used a day's time to discover what they might have learned in a few moments by watching the chips sink when they struck the water as they flew from the skilful blows of their axes.
The stream which cuts your trail is not always provided with bridges of fallen trees. It may be a river too deep to ford and too wide to be bridged by a chance log. Of course it is a simple matter to swim, but the weather may be cold and the water still colder; besides this, you will probably be encumbered with a lot of camp equipage--your gun, rod, and camera--none of which will be improved by a plunge in the water. Or it may so happen that you are on the shores of a lake unsupplied with boats, and you have good reasons for supposing that big fish lurk in some particular spot out of reach from the shore. A thousand and one emergencies may arise when a craft of some kind will be not only a great convenience, but almost a necessity. Under these circumstances
A Logomaran
may be constructed in a very short time which can bear you and your pack safely to the desired goal (Fig. 1).
In the Rocky, Cascade, and Selkirk Mountains, the lakes and streams have their shores plentifully supplied with "whim sticks," logs of fine dry timber, which the freshets have brought down from the mountain sides and which the rocks and surging torrents have denuded of bark. These whim sticks are of all sizes, and as sound and perfect as kiln-dried logs. Even in the mountains of Pennsylvania, where the lumberman's axe years ago laid waste the primeval forest, where the saw-mills have devoured the second growth, the tie-hunter the third growth, the excelsior-mills and birch-beer factories the saplings, I still find good sound white pine-log whim sticks strewn along the shores of the lakes and streams, timber which is suitable for temporary rafts and logomarans.
In the North Woods, where in many localities the original forest is untouched by the devouring pulp-mills, suitable timber is not difficult to find; so let the green wood stand and select a log of dry wood from the shore where the floods or ice have deposited it. Cut it into a convenient length, and with a lever made of a good stout sapling, and a fulcrum of a stone or chunk of wood, pry the log from its resting-place and roll it into the shallow water. Notch the log on the upper side, as shown by Fig. 2, making a notch near each end for the cross-pieces.
The two side floats may be made of pieces split, by the aid of wooden wedges, from a large log, or composed of small whim sticks, as shown by Fig. 3.
The floats, as may be seen by reference to Figs. 1 and 3, are shorter than the middle log.
It is impracticable to give dimensions, for the reason that they are relative; the length of the middle log depends, to some extent, upon its diameter, it being evident that a thick log will support more than a thin one of the same length; consequently if your log is of small diameter, it must be longer, in order to support your weight, than will be necessary for a thicker piece of timber. The point to remember is to select a log which will support you and your pack, and then attach two side floats to balance your craft and prevent it from rolling over and dumping its load in the water.
An ordinary single shell-boat without a passenger will upset, but when the oarsman takes his seat and grasps his long spoon oars, the sweeps, resting on the water, balance the cranky craft, and it cannot upset as long as the oars are kept there. This is the principle of the logomaran, as well as that of the common catamaran. The cross-pieces should be only thick enough to be secure and long enough to prevent the log from wabbling and wetting your feet more than is necessary.
If You Have an Auger and No Nails
the craft may be fastened together with wooden pegs cut somewhat larger than the holes bored to receive them, and driven in with blows from your axe.
If you have long nails or spikes the problem is a simple one; but if you have neither auger, nails, nor spikes you must bind the joints with rope or hempen twine.
If you have neither nails, auger, nor rope, a good substitute for the latter can be made from the long,
Fibrous Inner Bark
of a dead or partly burned tree. For experiment I took some of the inner bark of a chestnut-tree which had been killed by fire and twisted it into a rope the size of a clothes-line, then I allowed two strong men to have a tug-of-war with it, and the improvised rope was stronger than the men.
How to Make a Fibre Rope
Take one end of a long, loose strand of fibres, give the other end to another person, and let both twine the ends between the fingers until the material is well twisted throughout its entire length; then bring the two ends together, and two sides of the loop thus made will twist themselves into a cord or rope half the length of the original strand.
If you nail or peg the parts, use your axe to flatten the joints by striking off a chip, as in Fig. 4.
If you must lash the joints together, cut them with log-cabin notches, as in Figs. 5 and 6.
If you have baggage to transport, make
A Dunnage Crib
by driving four stakes in cuts made near the end of the centre log and binding them with rope or fibre (Figs. 7 and 8), or by working green twigs basket-fashion around them, or make the rack saw-buck fashion, as shown by Fig. 7, and this will keep your things above water.
A couple of cleats nailed on each side of the log will be of great assistance and lessen the danger and insecurity of the footing.
A skilfully made logomaran will enable you to cross any stream with a moderate current and any small lake in moderate weather. It is not an especially dry craft, but it won't sink or upset, and will take one but a short time to knock it together.