March 10, Thursday. The developments of fraud and swindling by contractors, and I fear by Navy agents and probably other officials, are represented to be astounding. Olcott, the detective, is an employé of the War Department and has been detailed to us for duty. I know less of him than I wish, for one intrusted with so delicate and responsible a duty. Fox is so greedy to get hold of the fellows that I fear he does not sufficiently respect private rights. I therefore hope Olcott is discreet and truthful.