(5) In the case of each mining privilege the pegs, cairns, or mounds erected at the angles or corners of the boundary-lines shall bear or have affixed thereto some one dis tinguishing mark, together with, in the cases following, the initial letters of the mining privilege—that is to say, O C for an ordinary claim, E C for an extended claim, S C for a special claim, W R for a water-race, T R for a tail-race, M L for a mineral license, B S for a business Bite, R S for a residence site, S S for a special site. (6) In the case of a sea-beach claim, it shall not be necessary to mark it out below high-water mark. (7) In the caae of a dredging or river claim which comprises any portion of the bed of a stream, the boundaries of the claim shall extend to both banks of the stream unless the Warden otherwise authorises. (8) Where the boundary of the mining privilege is on the bank or in the bed of a watercourse, then, in so far as it is not practicable to mark such boundary by means of pegs, cairns, mounds, tree-blazing, or trenches, it shall be sufficient if in lieu thereof arrow-headed marks (thus ) are cut or clearly indicated upon trees, rocks or other fixed natural objects above high-flood mark at the end of each boundary line, and also at intervals of not more thau 300 ft along the boundary lines, or as near thereto aB is practicable, each Buch arrow headed mark being not less than Ift in length, and each of the lines composing it being not less than 2in broad. (9) In additiod to such arrow-headed marks, there shall also be cut or clearly indicated at the end of each boundary-line the distinguishing mark and (if applicable) the initial letters referred to in sub-clause 5 *>-—v hereof. (10) In the case of a race it shall be sufficient if the course thereof is marked out with approximate ac curracy in Jieu of the boundary-lines of the lines. (11) In the case of a tunnel it shall be sufficient if the line of the proposed tunnel is marked out with approxi mate accuracy in lieu of the boundary lines of the land. 