Information To Mariners.
i In my last respects I communicated the melancholy- loss of the Tlen, of this port, Thomias Erskine, master, with goods ana pas, sengers, bound to Wontreag, by striking upon a sunken rock to the eastward of Rock AIL. " As the extent of the danger of thai place does not appear to be very genera lyknown. I have'taken the liberty to lay berore you what particulars I'could collect regardiing it. " 'aptain Erskine makes the longitude ofRock All to be 13deg. 40 min. W. aster a verydiiect run from his last departure, arid his vessel struck two different .iimes (but did not stop) on a clump of rocks, appirently not much .bigger than a ship's length, and on which the sea broke occasibnally: tthere were no other breakers near hitm or in sight di die time, Rock AU at tiis time borc.per compass W.S.W. half W., hb thinks about Six miles disiint; ' but as the iitathb.mas hiazy the'distance is probably something less. " Another werV intelligent man informs me, that two'years ago he fell in witlk bieakersi,beiring S.E. from Rock All about three or four miles Uistant, and that they appeared in dumps at some dis. tance from eiAliotber; but he is uncertain whether a ship might fiiid water over them. " From this it may be inferred that it is dangerous to come near this Rock All on the east side. All actounts which I have heard concur in riiaMingir safe enough on the west. ' It would be of great irnportance to the northern navigation, to ebtain a correct' survey of t'his -dangeroui rock and its vicinity." | I .WFORMATION. TO -AARINE)?S. I _ ,~~~~~~~~----- | FXTRACt'Or A LETTTER i'AOh T. AGENT 0 LLOYD'S AT DUTINDEE. DATED mkA 7.