Engagements on the Union Left.

While Pickett’s Charge was under way, the Pennsylvania Reserves, under McCandless, charged from the stone wall on the east side of the Wheatfield and regained possession of Devil’s Den and adjacent territory held by Longstreet’s forces since the engagement of the afternoon of the 2nd. Farther south, between Big Round Top and the line held by Longstreet’s right, a cavalry charge was made by Farnsworth’s Brigade of Kilpatrick’s Division. Farnsworth was killed. Merritt’s Brigade of Buford’s Division, which reached the field on the 3rd, engaged some of Longstreet’s troops along the Emmitsburg Road. The accomplished object of these movements was to prevent Longstreet from giving assistance to the charge of Pickett on Meade’s center.