Best place for a Cache.--The best position to choose for a cache is in a sandy or gravelly soil, on account of its dryness and the facility of digging. Old burrows, or the gigantic but abandoned hills of white ants, may be thought of, if the stores are enclosed in cases of painted tin: also clefts in rocks: some things can be conveniently buried under water. The place must be chosen under circumstances that admit of your effacing all signs of the ground having been disturbed. A good plan is to set up your tent and to dig a deep hole in the floor, depositing what you have to bury wrapped in an oil-cloth, in an earthen jar, or in a wooden vessel, according to what you are able to get. It must be secure against the attacks of the insects of the place: avoid the use of skins, for animals will smell and dig them out. Continue to inhabit the tent for at least a day, well stamping and smoothing down the soil at leisure. After this, change the position of the tent, shifting the tethering-place or kraal of your cattle to where it stood. They will speedily efface any marks that may be left. Travellers often make their fires over the holes where their stores are buried; but natives are so accustomed to suspect fireplaces, that this plan does not prove to be safe. During summer travel, in countries pestered with gnats, a smoke fire for the horses (that is, a fire for keeping off flies), made near the place, will attract the horses and cause them to trample all about. This is an excellent way of obliterating marks left about the cache.
Hiding Small Things.--It is easy to make a small cache by bending down a young tree, tying your bundle to the top, and letting it spring up again. A spruce-tree gives excellent shelter to anything placed in its branches. (See also what is said on "Burying Letters," p. 303.)
Hiding Large Things.--Large things, as a wagon or boat, must either be pushed into thick bushes or reeds and left to chance, or they may be buried in a sand drift or in a sandy deposit by a river side. A small reedy island is a convenient place for such caches.
Double Caches.--Some persons, when they know that their intentions are suspected, make two caches: the one with a few things buried in it, and concealed with little care; the other, containing those that are really valuable, and very artfully made. Thieves are sure to discover the first, and are likely enough to omit a further search.
To find your Store again, you should have ascertained the distance and bearing, by compass, of the hole from some marked place--as a tree--about which you are sure not to be mistaken; or from the centre of the place where your fire was made, which is a mark that years will not entirely efface. If there be anything in the ground itself to indicate the position of the hole, you have made a clumsy cache. It is not a bad plan, after the things are buried, and before the tent is removed, to scratch a furrow a couple of inches deep, and three or four feet long, and picking up any bits of stick, reeds, or straw, that may be found at hand lying upon the ground, to place them end to end in it. These will be easy enough to find again by making a cross furrow, and when found will lead you straight above the depot. They would never excite suspicion, even if a native got hold of them; for they would appear to have been dropped or blown on the ground by chance, not seen and trampled in. Mr. Atkinson mentions an ingenious way by which the boundaries of valuable mining property are marked in the Ural, a modification of which might serve for indicating caches. A trench is dug and filled with charcoal beat small, and then covered over. The charcoal lasts for ever, and cannot be tampered with without leaving an unmistakable mark.
Secreting Jewels.--Before going to a rich but imperfectly civilised country, travellers sometimes buy jewels and bury them in their flesh. They make a gash, put the jewels in, and allow the flesh to grow over them as it would over a bullet. The operation is more sure to succeed if the jewels are put into a silver tube with rounded ends, for silver does not irritate. If the jewels are buried without the tube, they must have no sharp edges. The best place for burying them is in the left arm, at the spot chosen for vaccination. A traveller who was thus provided would always have a small capital to fall back upon, though robbed of everything he wore.
A Chain of gold is sometimes carried by Arabs, who sew it in dirty leather under their belt. They cut off and sell a link at a time. (Burton)
The gun-stock is a good receptacle for small valuables. Unscrew the heel-plate and bore recesses; insert what you desire, after wrapping it tightly in cloth and plugging it in; then replace the heel-plate. (Peal.)
Depositing Letters.--To direct Attention to the Place of Deposit.--When you make a cache in an inhabited land, for the use of a travelling party who are ignorant of your purpose, there is of course some difficulty in ensuring that their attention should be directed to the place, but that the natives should have no clue to it. If you have means of gashing, painting or burning characters, something of this sort (see fig.), they will explain themselves.
