The first Yard concert by the Harvard Band has been postponed from this evening to tomorrow. The programme will be as follows: 1.  March, "Under the Double Eagle,"  J. T. Wagner. 2.  Characteristic, "My Honolulu Baby,"  Johnson. 3.  March, "Singing Girl,"  Herbert. 4.  Indian War Dance,  Bellstedt. 5.  Characteristic; "Hannah's Promenade,"  Ellis. 6.  March, "Ameer,"  Herbert.