Most African explorers have been painstaking, conscientious workers, eager in their quest for the truth, desirous to report nothing but the truth, and treating the lowly and ignorant they have met as men, with sensibilities like their own, capable of gratitude for a kindness and keenly sensitive to an outrage. The world has recognized and applauded such heroes of discovery,--the men who faced hardship and peril, enduring and sacrificing much that knowledge might grow; who had to conquer not only unkind Nature, but to overcome the ignorant violence of man. And not a few of the leaders in this work have carried it out with a degree of tactfulness, humanity, gentleness, and kindliness of spirit amounting to genius. Some of them spent months in disguise, collecting facts of the highest scientific value among fanatical Mohammedans who would have killed them if they had known their secret. Such men were Burton in Harrar, Dr. Lenz in Timbuctoo, and De Foucauld and Harris in Morocco, who, in stained skins and borrowed costumes, personated merchants and devotees and doctors and Jews; and most of whom have enriched the literature of discovery with valuable books. Men also such as Dr. Junker, who, rich as he was, left his home to spend eight years alone among the savages of the Welle Makua basin in Central Africa, living on their food and in their huts that he might minutely study the people in their country; or Grenfell, who has travelled far more widely in the Congo basin than Stanley or any of his followers except Delcommune, and revealed to the world more river systems and unknown peoples than they, and who, in his long career as an explorer, never fired a shot upon a native, though his life was often threatened. These men, and others like them, have exemplified the manysidedness of human resources against a great variety of peril and obstacle, as no other explorers in any other part of the world have had an opportunity to do in equal measure. Their work, with its environment of almost overwhelming difficulty, should be known to our youth as most forceful illustrations of what good men may dare and do in good causes and in a worthy manner. There have been some exceptions to this rule. A few men have been less anxious to perform useful service than to figure in the newspapers and pose before their public. One day a man stood on the north shore of Victoria Nyanza, and looking south he saw land. When he returned to London he published a sensational book, in which he said it was ridiculous for Speke to assert that he had discovered a lake as large as Scotland, one of the greatest lakes in the world. "Why," said the writer, "I have stood on the north shore of the Victoria Nyanza and looked south and seen the southern shore. Lake Victoria is only an insignificant sheet of water, after all the talk of its being second only to Lake Superior."