The following escit'mg eveht iook place recently, in Baltimoro harbor: Our harbor faas been on fire for the last twenty-four hours, literally on fire. The surface of the water for thousands ol nquaro yardfc has been a perfect flame, caused by the destruetion of the Italian ship Juliana, whioh took fiie while lyiog at the wharf and loading with petroleum. She had on board ; one thousand eight hundred barrels, and hnd to be towed over to the oppositeHideof tha bagin to save tho surronndinpr property. As the barrels would bursi the oil spread over the water in a flame. National Teachers' Association. - The annua! meeting of tlio National Teachers' Assoeiation will bo held at Ogdensburg, New York, connnencing on the lOth of August, at 10 o'clock A. M., and continuing tl ee dajs. Most of the hotels at -OgdeüsbuCg will furnish accommodations to niembers ata reduced charge of 1 50 a day. The exercises will cocsist of lectures and papers by prominent edueators, and the discussion of various educatioual topics. Arrangements liave been made for excursión tickets by Grand Trunk to Ogdensburg and Montreal; thence by Vcrmont Central to Boston. Those who piefer to go from Montreal to Boston by way of Portland cun do bo without extra charge, provided notice is given when the ticket is purchased. This route is by Grand Truuk from Moutreal to Port liiud, thence by fteamcr to Boston. Teachers choosing this route will also returu by way of Portland. Tickets to teachers and tchool officers, for the round trip frora DetiMit aud back, twenty dollars.