Prof. M. E. Cooley was in Washington Monday and was interviewed by George Miller, a staff oorrespondent of the Detroit Evening News, who sent bis paper the following dispatoh: Washington, Aog. 1. - M. E. Cooley, ohief engineer of the Yosernite, who is in Washington on business connected with the navy departmeut, speaks in almost extravagant langnage of tbe charaoter of the engineer corps be tooit from the gteat lakes to go with the Michigan Naval Militia. "The position of the men in the entine room during an engagement," he says, "is the most trying of any on the ship. Tbey have none of the exhilara;ion of battle to sustain their courage, bnt must do everything to drive the maobinery to its higbest possible capaoity on purely Amerioan grit. They iuow a single shell may kill several men among tbe fighting crew, and that tbe same shell if it pieroes the engine room is liable to sink an unproteoted ship, and if it outs a steampipe wbile he pressure is at 160 pounds, will kill the whole engineers' corps of 40 or more instantly. The onstom on navy vessels going into battle, is for the enineer offlcers to wear side arms and whenever a man flnnks, shoot him. "On the ïosamite tbe side armswere laft above. There was do need for tbern. The only tronble with those Michigan boys was, to prevent thein 'rom forcing tbe pressure ou the boilers and ruachinery too high. They worked iike tigers while tbe only signs of battle they conld observe were the beave of the ship when a broadside was discharged, and the rattle of soot through the pipes from the forced draught. " Prof. Cooley is seriously debating whether to remain in tbe navy, as he can, if he likes. He now holds the bighest rank, and it's good pay with a nice salary for life after retireruent.