April 15. — It rained heavily during the night, and also this morning, putting an effectual check on all movements for some time. The rain continued all day. Supplies were forwarded to the cavalry. Had an order to inspect the pontoon train in General Howard’s corps as soon as the rain held up, but had no chance to go as the rain continued all clay. Every one feels blue on account of the cavalry, whose movements the rain must seriously interfere with.
