a few inches to two feet in width in them. Twenty tons of ore from one cut gave a $406 gold brick, and 800 pounds from the same vein gave a return of $134 per ton at the Keewatin Reduct on Works.

On No. 3 vein a shaft has been sunk 40 feet. The vein averages about two feet in the shaft, and is 18 inches wide at the surface. Operations have been discontinued here also, and the shaft allowed to fill with water. At the surface it has been properly fenced.

The main or Stella vein was the only one being worked at the time of my visit, July 11. The tunnel, mentioned in last year's report, has been driven 104 feet and discontinued. The vein ranges from two to four feet in width, averaging about 3 feet. Close to the tunnel a shaft was being sunk on the vein; it was then 51 feet deep, dipping 57 degrees south. The vein ranges from four to 4 feet in width, consisting of quartz and schist mixed. The manager states that assays run from $7 upwards, and he believes that it will average over $.0 per ton. A suitable collar has been provided to a depth of 16 feet. A neat head frame has been constructed, and hoisting is done by horse power.

Twenty feet east of this shaft a test pit had been sunk on the vein 15 feet, but filled up again with broken rock.

The buildings consist of sleeping camp to accommodate 15 or 20 men, dining camp, stable, ice house and blacksmith shop.

There is a total force of 10 men, seven of whom are miners working day and night shifts.

A wagon road has recently been cut direct to the mine, branching off from the main road which runs to Andrew bay.

Meeting Mr. Campbell in Rat Portage on November 28, I learned that the shaft had been sunk on the Stella vein to a depth of 127 feet, and work stopped on the first of the month. It is probable that operations will be suspended until steam hoisting machinery is installed.

after leaving the landing at Witch bay. The property consists of three locations, McA56, 129 and 148, aggregating 113 acres. It is owned and operated by the Triggs Gold Mining Company of Ontario, Limited. President, F. D. Sargeant, St. Paul, Minn. ; vice-president, J. W. Millar, Rat Portage ; secretary and treasurer, J. H Triggs, Rat Portage. I visited the place in August. Work has been going on since October, 1897, under the management of J. H. Triggs, secretary of the company.

The workings, are confined to an elevated portion of ground 40 or 50 feet in height, about 150 feet in width and from 700 to 800 feet in length, surrounded by low, swampy ground. The formation is fine grained trap. The richest ore is confined to veins, and consists of zones of quartz and greenstone mixed, extending along the top of the hill wi h a strike of nearly east and west. There are two of these veins, one on the north and the other on the south side of the hill, about 150 feet apart but the manager has made repeated tests, resulting in the conclusion that gold is contained to a sufficient extent and sufficiently diffused to warrant treatment of the whole mass between the veins. quartz in the veins assays exceptionally high, and the greenstone between gives promising

returns.

The

No. 1 vein, on the south side, has been exposed by a number of small test pits two or three feet in depth, sunk at frequent intervals, extending over a distance of several hundred feet. Oxidized material is revealed in most cases, with from a few inches to two feet of quartz. A shaft has been sunk on the vein to a depth of 80 feet, but was not in operation and was partially full of water at the time of my visit, preventing ingress. At a depth of 40 feet a drift has been driven eight feet west along the vein. Mr. Triggs informed me that the shaft followed a very rich pay streak for the greater part of the distance, but this dipped so flatly near the bottom that sinking was continued in the foot wall. Several hundred tons of rich ore have been dumped separately at the surface, awaiting the erection of a mill. A neat collar and a ladderway have been provided, and a temporary shaft house built.

On No. 2 vein, which is traceable for from 500 to 800 feet along the north side of the hill, two test pits have been sunk; one 10 feet deep revealed four feet of vein matter consisting of quartz and greenstone, charged with pyrites and said to assay well. The other, 70 or 80 feet west, was six feet in depth and 14 feet in length, exposing about 10 feet of vein matter; the vein branched here, the branches aggregating about five feet in width. Iron and copper pyrites were abundant and assays were satisfactory.

Near the foot of the hill, on the north side, a tunnel was commenced which was intended to be driven through to the south side, cutting both veins. I learned later from Mr. Triggs that this had been driven 40 feet, and work at the mine suspended, with the intention of commencing again during the winter.

The force consisted of three miners and a cook. Boarding camps, a stable and a blacksmith shop had been built.

Locations

Sentinel Mine.

On the south shore of Labyrinth bay is a property consisting of locations WA7, 8 and 9, owned by the Corondo Go'd MinWA7, 8, 9 ing Company, Limited; it is being tested under option at present by the Sentinel Consolidated Gold Mining Company of Ontario, Limited, with head office at Toronto. President, Dr. Edmund E. King; manager of company and mine, N. B. Eagen. Work has been going on since the summer of 1898. Two shafts have been sunk on WA7, one 40 feet deep and the other 106 feet; the latter one is being continued. I did not vis t the property, but got the foregoing information from Mr. John McAree, O.L.S., engineer of the mine, and Mr. Hamilton Proudlock. foreman of the work. A mill run of 60 tons was made at the Rat Portage Reduction Works in February, 1898, with reported satisfactory results.

Mines on Shoal Lak. Although Shoal lake is cnected with Lake of the Woods, it dese s to be dealt with as a distinct mining re on account of the character of the rock ion which composes the greater part of the area that is

develop

ment.

Prospecting, sinking of test shafts and diamond drill ng have been done at various points Systematic on the property, together with a method of study of the geology of the main veins, which has led to a systematic method of underground development in which fach drift or cross-cut is driven with the calculation f striking an ore body or workable portion of the vein at an estimated distance.

Previous reports f the Bureau of Mines contain descriptions by Dr. Coleman of the rocks constitut ng the formation, as well as accounts of the property in general. The formation consists of altered trap with areas of intrusive granite occurring on the northeru part of the property. A dike or tongue of the granite, varying from 150 to 300 feet in width, extends for a distance of about a quarter of a mile west from the main body into the trap, crossing the two main veins which are 400 feet apart, and paralel with a strike of north 30° west, outcropping for a short distance each near the shore of Bag bay. This tongue of granite dips 30 degrees south, as revealed by underground workings. The Evidence of portion between the veins has been

Faulting.

faulted or thrown 4 feet to the north, the veins representing the lines of displacement. This is shown at both veins, but best at No. 1, the west vein, and establishes beyond doubt their dynamic origin. In all the workings the continuity of the fault is evident, although generally in the trap the effect of subsequent agencies of vein formation has not been so great as in the granite, consisting for the most part of a small but