...s at Curls Neck. At last accounts there were several gunboats in sight of Gregory's farm, 2 ½ miles from Chaffin's Bluff. From a dispatch received at the Navy Department from Lieut. Hunter Davidson , in charge of submarine defences, we learn that a Yankee gunboat run foul of one of the torpedo sentinels in the James river yesterday morning and was blown to atoms. He says there "is hardly a pie...