for several years physician in charge of the largest Dispensary District in Boston, afterwards a General Inspector of the Sanitary Commission, and Surgeon of its Relief Stations at Yorktown, White House, and Berkeley, lastly Surgeon of Volunteers. He fell at his post in the works at Washington, North Carolina, during its bombardment by the rebels, March, 1863. INTRODUCTION. The Sanitary Commission, grateful for the generous confidence reposed in it by the public, would be glad to meet and justify that confidence by a circumstantial account of its operations in field and hospital, from the first day of its existence to the present. It might, perhaps, without undue boasting, show such a picture of what has been accomplished as would stimulate, to the last degree, the interest and the liberality of loyal hearts, if this were required. But the immense mass of details which such an account must involve, would prove nearly as laborious in the reading as in the performance, overwhelming rather than enlightening all who have not been personally engaged in the work. The intense interest which the service inspires in those devoted to it, lightens what might, under other circumstances, seem wearisome duties; but a minute description of the ceaseless round of consultations, examinations, correspondence, journeys, accounts, distributions, required of the Commission as trustee of the public bounty, could not be expected to prove interesting to others. The most that the Commission can at present be called upon to offer, or the public be likely to accept, is such brief accounts of single sections in the various departments of its labor, as may indicate the general method and spirit extending through the whole. In accordance with this plan, from time to time, the Commission has published reports covering a single battle-field, or a term of one round of visits to the hospitals, or the results of its arrangements for the care of disabled and discharged soldiers for a stated period. There is one branch of the service, however, which has as yet had no such public record,—that of the Hospital Transports. In order to supply this omission in some measure, the Commission has caused to be placed in the hands of a manager of the "Woman's Central Army Relief Association of New York," a quantity of letters and other papers, containing observations made at the time, and on the spot, by those in its service who assisted in the embarkation and care of the sick and wounded on the peninsula of Virginia in 1862. Passages from these have been selected and arranged with a view to give within moderate compass as many particulars as may be necessary to show the scope of the enterprise, and the position which it held as an aid to the government, together with the difficulties and the success, the disappointments and satisfactions, with which it was attended. The plan is limited to the Atlantic hospital transports, and