"Those of our readers who are familiar with the early history of San Francisco will be interested to know that an eccentric and irregular trusteeship, vested for the last eight years in the Mayor of San Francisco and two of our oldest citizens, was terminated yesterday by the majority of a beautiful and accomplished young lady, a pupil of the convent of Santa Clara. Very few, except the original trustees, were cognizant of the fact that the administration of the trustees has been a recognized function of the successive Mayors of San Francisco during this period; and the mystery surrounding it has been only lately divulged. It offers a touching and romantic instance of a survival of the old patriarchal duties of the former Alcaldes and the simplicity of pioneer days. It seems that, in the unsettled conditions of the Mexican land-titles that followed the American occupation, the consumptive widow of a scion of one of the oldest Californian families intrusted her property and the custody of her infant daughter virtually to the city of San Francisco, as represented by the trustees specified, until the girl should become of age. Within a year, the invalid mother died. With what loyalty, sagacity, and prudence these gentlemen fulfilled their trust may be gathered from the fact that the property left in their charge has not only been secured and protected, but increased a hundredfold in value; and that the young lady, who yesterday attained her majority, is not only one of the richest landed heiresses on the Pacific Slope, but one of the most accomplished and thoroughly educated of her sex. It is now no secret that this favored child of Chrysopolis is the Dona Maria Concepcion de Arguello de la Yerba Buena, so called from her ancestral property on the island, now owned by the Federal government. But it is an affecting and poetic tribute to the parent of her adoption that she has preferred to pass under the old, quaintly typical name of the city, and has been known to her friends simply as 'Miss Yerba Buena.' It is a no less pleasant and suggestive circumstance that our 'youngest senator,' the Honorable Paul Hathaway, formerly private secretary to Mayor Hammersley, is one of the original unofficial trustees; while the chivalry of the older days is perpetuated in the person of Colonel Harry Pendleton, the remaining trustee." As soon as he had finished, Paul took a pencil and crossed out the last sentence; but instead of laying the proof aside, or returning it to the waiting secretary, he remained with it in his hand, his silent, set face turned towards the window. Whether the merely human secretary was tired of waiting, or the devoted partisan saw something on his young chief's face that disturbed him, he turned to Paul with that exaggerated respect which his functions as secretary had grafted upon his affection for his old associate, and said:--