Charmed with his new friends, the power of whose weapons he acknowledges, the negro chief does not neglect the opportunity of seeking their alliance to attack a hostile neighbor. Marching throughout the night, guided by their negro hosts, they bivouac within an hour's march of the unsuspecting village doomed to an attack about half an hour before break of day. The time arrives, and, quietly surrounding the village while its occupants are still sleeping, they fire the grass huts in all directions and pour volleys of musketry through the flaming thatch. Panic-stricken, the unfortunate victims rush from their burning dwellings, and the men are shot down like pheasants in a battue, while the women and children, bewildered in the danger and confusion, are kidnapped and secured. The herds of cattle, still within their kraal or "zareeba," are easily disposed of, and are driven off with great rejoicing, as the prize of victory. The women and children are then fastened together, and the former secured in an instrument called a sheba, made of a forked pole, the neck of the prisoner fitting into the fork, and secured by a cross-piece lashed behind, while the wrists, brought together in advance of the body, are tied to the pole. The children are then fastened by their necks with a rope attached to the women, and thus form a living chain, in which order they are marched to the head-quarters in company with the captured herds.

This is the commencement of business. Should there be ivory in any of the huts not destroyed by the fire, it is appropriated. A general plunder takes place. The trader's party dig up the floors of the huts to search for iron hoes, which are generally thus concealed, as the greatest treasure of the negroes; the granaries are overturned and wantonly destroyed, and the hands are cut off the bodies of the slain, the more easily to detach the copper or iron bracelets that are usually worn. With this booty the TRADERS return to their negro ally. They have thrashed and discomfited his enemy, which delights him; they present him with thirty or forty head of cattle, which intoxicates him with joy, and a present of a pretty little captive girl of about fourteen completes his happiness.

An attack or razzia, such as described, generally leads to a quarrel with the negro ally, who in his turn is murdered and plundered by the trader—his women and children naturally becoming slaves.

A good season for a party of a hundred and fifty men should produce about two hundred cantars (20,000 lbs.) of ivory, valued at Khartoum at 4,000 pounds. The men being paid in slaves, the wages should be NIL, and there should be a surplus of four or five hundred slaves for the trader's own profit—worth on an average five to six pounds each.

The amiable trader returns from the White Nile to Khartoum; hands over to his creditor sufficient ivory to liquidate the original loan of 1,000 pounds, and, already a man of capital, he commences as an independent trader.

Such was the White Nile trade when I prepared to start from Khartoum on my expedition to the Nile sources. Every one in Khartoum, with the exception of a few Europeans, was in favor of the slave-trade, and looked with jealous eyes upon a stranger venturing within the precincts of their holy land—a land sacred to slavery and to every abomination and villainy that man can commit.

The Turkish officials pretended to discountenance slavery; at the same time every house in Khartoum was full of slaves, and the Egyptian officers had been in the habit of receiving a portion of their pay in slaves, precisely as the men employed on the White Nile were paid by their employers. The Egyptian authorities looked upon the exploration of the White Nile by a European traveller as an infringement of the slave territory that resulted from espionage, and every obstacle was thrown in my way.

To organize an enterprise so difficult that it had hitherto defeated the whole world, required a careful selection of attendants, and I looked with despair at the prospect before me. The only men procurable for escort were the miserable cut-throats of Khartoum, accustomed to murder and pillage in the White Nile trade, and excited not by the love of adventure, but by the desire for plunder. To start with such men appeared mere insanity.

There was a still greater difficulty in connection with the White Nile. For years the infernal traffic in slaves and its attendant horrors had existed like a pestilence in the negro countries, and had so exasperated the tribes that people who in former times were friendly had become hostile to all comers. An exploration to the Nile sources was thus a march through an enemy's country, and required a powerful force of well-armed men. For the traders there was no great difficulty, as they took the initiative in hostilities, and had fixed camps as "points d'appui;" but for an explorer there was no alternative, but he must make a direct forward march with no communications with the rear. I had but slight hope of success without assistance from the authorities in the shape of men accustomed to discipline. I accordingly wrote to the British consul at Alexandria, and requested him to apply for a few soldiers and boats to aid me in so difficult an enterprise. After some months' delay, owing to the great distance from Khartoum, I received a reply inclosing a letter from Ismail Pacha (the present Viceroy), the regent during the absence of Said Pacha, REFUSING the application.

I confess to the enjoyment of a real difficulty. From the first I had observed that the Egyptian authorities did not wish to encourage English explorations of the slave-producing districts, as such examinations would be detrimental to the traffic, and would lead to reports to the European governments that would ultimately prohibit the trade. It was perfectly clear that the utmost would be done to prevent my expedition from starting. This opposition gave a piquancy to the undertaking, and I resolved that nothing should thwart my plans. Accordingly I set to work in earnest. I had taken the precaution to obtain an order upon the Treasury at Khartoum for what money I required, and as ready cash performs wonders in that country of credit and delay, I was within a few weeks ready to start. I engaged three vessels, including two large noggurs or sailing barges, and a good decked vessel with comfortable cabins, known by all Nile tourists as a diahbiah.