Leaving his well-established work among the Namangwato, the Bakaa, the Makalaka, and the Bechuana tribes to be carried on by trained native helpers, this fearless man pressed on—always toward the dark interior. When his course was criticized, he wrote, "I will go anywhere, provided it be forward," and "forward" he went.

Livingstone's mind was one of that broad character which at the outset grasps the whole of a problem, and to those who have followed his later course it is clear why he saw no duty in settling down on one fixed spot to teach and preach in a slavery-harrowed land. He knew that, first, there must be a mighty clearing out of this evil. As for his own intent, he said, "Cannot the love of Christ carry the missionary where the slave-trade carries the trader?" And so, right through to the west coast he marched, carrying and diffusing everywhere a knowledge of the redeeming Christ, and illustrating by his own kindly life and words and deeds the loving mercies of the Lord.

The physician and the scientist, the minister and the reformer, were all combined in this one purposeful man. The people believed him to be a wizard, and even credited him with power to raise the dead. Heathen, sick and curious, crowded about his wagon, but not an article was stolen. One day the chief of a savage tribe said: "I wish you would change my heart. Give me medicine to change it; for it is proud, proud and angry, angry always."

Livingstone left on record in his journals invaluable data of rivers, lakes, and streams, treacherous bogs, and boiling fountains, plants, animals, seasons, products, and tribes, together with the most accurate maps.

Near the mighty but then unknown Zambesi, Livingstone found the Makololo people, a tribe from which came his most devoted native helpers. When he left them to journey toward the west coast, as many men as he needed willingly agreed to accompany him. After a terrible journey of seven months, involving imminent starvation and endless exposure, the party at last reached their destination, St. Paul de Loanda, a Portuguese settlement.

Full as this journey was of incident, one of the most impressive things about it all was the horrors of the slave-trade, which came home to the missionary with heart-rending directness. "Every day he saw families torn asunder, dead bodies along the way, gangs chained and yoked, skeletons grinning against the trees by the roadside. As he rowed along on the beautiful river Shire, the paddles of his boat were clogged in the morning with the bodies of women and children who had died during the night, and were thus disposed of by their masters." And when he was sure that the wretched system was entrenched from the center of the continent to the coast, is it any wonder that he determined to make the exposure of this gigantic iniquity his principal work until "the open sore of the world" should be healed?

The slave-raiders were Livingstone's bitter enemies, and did everything possible to hinder his work. Just a story:—

Into a quiet little village on the shores of Lake Nyassa came some strangers one beautiful afternoon. The king sent to inquire as to their business. "We are Livingstone's children," they said. "Our master has found a road to the coast, and sent us back for his supplies. The day is late; we wish to spend the night in your village." "The white master is our friend," said the king, and he commanded his men to prepare the best huts for Livingstone's children. Some of the servants left at once to carry out the king's command, and soon the visitors were comfortably settled. The people flocked to their huts, bringing many gifts, and lingered about until the day was ended.

Late that night, when all the village was asleep, suddenly there was a piercing scream, then another, and another. The people rushed from their huts; for many of their homes were on fire. The white men, who called themselves Livingstone's children, were seizing women and children, and binding them with strong cords of leather. Around the necks of the men they fastened great Y-shaped sticks, riveting the forked ends together with iron. "We have been deceived," cried the natives. "The visitors were not Livingstone's children. They were slave-raiders. O! why did we ever trust them? If the white master were here, he would save us. He never takes slaves."

In the gray light of the morning, leaving their village a heap of smoldering ruins, the sad procession was marched off, heavily guarded. For two days their merciless captors drove them under the hot tropical sun without food or water. Late the second afternoon, they suddenly came upon a camp, at a sharp bend of the road, and there, in plain view, stood Dr. Livingstone. Every slave-driver took to his heels and disappeared in the thickets. They had all respect for that one white man. They knew he was in Africa to stop the slave-trade. The whole procession of slaves fell on their knees in thanksgiving, rejoicing in this unexpected deliverance, and were soon returning to their own country.