of the United States army were selected to lead the expedition, and with them were sent a botanist, a geologist, an engineer, and some soldiers, who were required each to make a full report of their journey, which took three years to accomplish. It is significant of the indifference of the government in the matter that these reports were sent to Washington and were laid aside for several years when--through Jefferson's influence again--the captains' reports were handed over to Richard Biddle of Philadelphia, who made a brief abstract of them, constituting one small volume, that passed for many years as an account of the Lewis and Clark exploration, and it has not been until within the past three years that any genuine copy of these reports has ever been published. It is small wonder then that thirty years later Oregon remained an almost unknown and unclaimed country. The young captains and their company, full of enthusiasm for their work, made their preparations and purchased their supplies, mostly at their own expense, and left the last marks of civilization at St. Louis in the spring of 1804. [Illustration: SACAJAWEA (THE BIRD-WOMAN). Guide of the Lewis & Clark Expedition.] The heroic little company made its first winter camp at Fort Mandan on the Upper Missouri, ready for an early start in the spring. The success of the expedition in a strange land through the long line of savage tribes was dependent largely upon a good guide and interpreter. Lewis and Clark had secured Toussaint Chabonneau, a Frenchman, who had renounced civilized life, married, and settled among the Indians. He had traveled over wide stretches of country, and had a small knowledge of the language of several tribes. Sacajawea, the wife of Chabonneau, was a handsome Indian girl of seventeen years. She had been captured by the Minitaree Indians when a small child, from the Shoshone Indians far up in the Rocky Mountain region, held by them as a slave, and sold to the Frenchman who made her his wife. Sacajawea was delighted with the prospect of again journeying toward her old home, but continued to do the menial work for the company, as is customary for Indian women. Captains Lewis and Clark, before many weeks upon their journey, saw that their real guide and interpreter was not Chabonneau, but Sacajawea, his wife. Their way along the great river proved the identical route which the captive child had taken from her home into slavery, and with Indian nature and sagacity, every notable spot remained in her memory. She told them of the streams in advance that flowed into the great river, and the tribes through which they were to pass; she told them her history; she was the daughter of the great chief of the Shoshone Indians, who were rich in land and horses. They owned large possessions reaching to the foot of the Rockies, to which they came during the summer months. It was there where she became a prisoner. When they reached the place she ran like a child and pointed out the