I had the honor to address you the 4th Instant covering a Letter to Genl Hazen ordering him to send on a certain Prisoner now in York Goal. I have reasons for countermanding the order and wish to stop it if possible before it gets to General Hazen—but should this not arrive in time for that I must beg you to send an Express to Genl Hazen directi[n]g him not to carry the order into execution or even to make it public ’till he hears further from me. I &c.