AID FOR THE SICK AND WOUNDED OF THE ARMY AND NAVT. ---*•-— Sanitary Commission, Washington, D. C, Treasury Building, July 3, 1861. The following articles, which cannot be provided at present by Government, are immediately needed for the volunteers in hospital: Cotton Bed-shirts, one-and-a-half yards long; two breadths of un- bleached muslin, one yard wide ; open one-half yard at bottom; length of sleeve, three fourths yard ; length of arm-hole, twelve inches ; length of collar, twenty inches; length of slit in front, one yard; fastened with four tapes. Loose Drawers, one-and-a-quarter yards long, with a breadth of one yard wide muslin in each leg, with a hem and drawing-string round the waist and the bottom of each leg; length from waist to crotch on the back, twenty-two inches; and in the front, eighteen inches, with three buttons and three button-holes. Soft slippers of different sizes. Light Flannel Dressing-gowns, of different sizes. Towels and Handkerchiefs. Abdominal or Body Bandages : Material, thick flannel; length, one-and-a-half to one-and-three-quarter yards; to overlap in front; width, ten to thirteen inches, with narrow gores at the hips ; three-and- a-half inches high, and two inches wide at bottom, with three broad tapes on each side, attached upon or above the gores. The articles, if conveyed free of charge to this office, will be acknowl- edged and accounted for, and used where the need for them is most pressing. Direct to the "Sanitary Commission, Treasury Building, Wash- ington." FRED. LAW OLMSTED, Resident Secretary. Editors of newspapers are respectfully requested to lay the above announcement before their readers without delay.