The Isthmus of Suez Question

by Ferdinand de Lesseps

At the eighth year they begin to yield interest on the capital and cost of keeping up (which is almost nothing), from the combustible that is obtained by removing the surplus, from making charcoal, &c. &c. At twenty years they begin to extract resin from the trees, at thirty years the produce is most abundant, and continues up to eighty years, when the wood is fit for building purposes. Then new seed plots are formed in proportion as the old trees are removed.

The annual produce of resin gathered from a hectare of pines is an average of five metric quintals, which, at the rate of twenty-two francs per quintal, gives a revenue of 110 francs, and represents at least seventy per cent. of the capital employed.

It will be seen by this statement, that the fixing of the downs has become one of the most productive operations of Silviculture, and that it offers one of the most advantageous investments for capital.

It was therefore necessary for us to know, whether the downs which cover the northern part of the Isthmus could be fixed by the same process. Now, we have ascertained, 1st. That the greater part of these downs are naturally fixed by a multitude of different plants, which have found sufficient moisture for their support; 2nd. That the moveable downs of the basin of Lake Timsah conceal moisture at a very little depth below their surface; they may, therefore, be fixed by seed plots, and to do it there is the immense quantity of bushes and shrubs which grow in the low parts surrounding the lake, and which give to that region the appearance of a copse.

Not only will sufficient branches be found on the spot for the tufted seed plots, but moreover, all the combustibles for the lime, and for the wants of the workmen, will be furnished abundantly.

It is true, that at the time we made our observations (January, 1855), tolerably abundant rains had recently moistened the soil; the success of the seed-plots, which would be destitute of moisture for the rest of the year, might therefore be doubted; but what is there to prevent the moist season being chosen for making these plots? and the seed once risen, the abundant moisture which is felt in this region, especially during the summer nights, will suffice to support vegetation, as is seen by the downs fixed naturally. Finally, to remove all objections, the fresh water canal which will end at Lake Timsah, will supply, if required, the means of affording, during the early days of the seed-plots, sufficient moisture for the success of the undertaking.

There is no possible doubt then as to the success which will be obtained in the fixing of the moveable downs, nor as to the pecuniary advantages which result from it, for the maritime pine answers well in Egypt, and other kinds of trees may be found still more productive. The cost of sowing will be less than in France, on account of the low price of labour, and the profits will be more considerable and more quickly obtained, on account of the hotter climate, and the consumption on the spot of all produce now wanting, and which is obliged to be procured from a distance.

We estimate the superfice of the downs to be fixed in this part of the Isthmus at about 2000 hectares, but if seed-plots and replantations were made upon all the downs naturally fixed, 100,000 hectares of forest might thus be formed. It is for the Company to decide what extent of country it will be suitable to cultivate in this way. A final objection has been made to the Canal by assuming that steam navigation, by the agitation of the water which it produces, would quickly destroy the banks of the Canal,—banks formed in a moveable soil which would fill up the trough.

To guard against this inconvenience, which might, in fact, be apprehended, we have adopted very gentle slopes (two on the base line to one in height); then we have covered these slopes with stones for the whole height on which the agitation caused by the passage of steam-vessels could be felt. We have in our favour the example of the Caledonian Canal, thus furnished with a covering of stones formed of simple materials. This is what M. Flachat says, in the description that he gives of this Canal, according to the reports of the Commissioners of the House of Commons: “Steam navigation especially demands attention. Difficult, perhaps even impossible, upon ordinary canals, where it causes an agitation which rapidly destroys the banks, it is organized on the Caledonian Canal, and presents nothing but advantages. With a speed of 11,000 to 12,000 met. per hour, all that has been observed is a general plashing, which is not more than that produced by a moderately gentle wind. The only precaution taken was, to collect on the banks and made ground all the large pebbles with which the land is filled, and to cover with them for a foot in height below the line of the water, the banks which, from the coarse composition of the soil, were too easily disturbed by the agitation of the waves. But wherever the ground had a good proportion of sand, there was nothing to be done.” Finally, it has been assumed, that the Government of Great Britain, yielding to a national prejudice, would put obstacles in the way of the project of cutting through the Isthmus, if it should be ascertained to be feasible, and that the English capitalists would not be disposed to concur in the undertaking. The future alone can show what truth there is in this assumption; we cannot at all conceive the opposition of the Government of a great nation to a project to which the English have especially, in these latter times, drawn the attention of the commercial world and their own Government on account of the special advantages which it offers to England. We have already referred to the writings of the traveller Bruce and those of Captain Rooke. We will now cite other names.