35 to 12 inches of clean sulphide, consisting mostly of finely banded galena and jamesonite; near the top there is a band of 8 inches, mostly of zine blende. These zones have good walls and are said to carry high silver values; the showings are well worth further development and are excep- tionally promising. Assays by the British Columbia Bureau of Mines of samples from Sunset group, are as follows: Bright clean galena from a 4-inch stringer in mineralized shear zone: gold, 0-02 ounce; silver, 140 ounces; lead, 72-5 per cent. Across 5 feet of shear zone: silver, 49-8 ounces; lead, 24-2 per cent; zinc, 5-2 per cent. Picked ore from same zone as No. 2: gold, trace; silver, 86 ounces; lead, 61-6 per cent; zine, 7-5 per cent. Farther east in the other basins similar deposits are known, but the above descriptions are typical. Paragenesis of Ores. The paragenesis of the ores from this locality is similar for all the deposits and is as follows. Table of Paragenesis of the Ores on the North Side of Ninemile Mountain. Fissuring of the country rock with the formation of veins and shear zones Deposition of quartz with some calcite Siderite Arsenopyrite and pyrite Zinc blende Tetrahedrite \ Galena veining zinc blende Jamesonite Zinc blende is usually the most abundant metallic mineral, then jamesonite, and then galena; there is considerable finely crystalline arsenopyrite, but not so much of the other minerals. Plate XA shows the relationship of the jamesonite to the zine blende. Discussion. The Ninemile ore consists only of the following minerals: pyrite, arsenopyrite, zine blende, galena, jamesonite, and tetrahedrite, in a gangue of quartz and calcite. The pyrite and arsenopyrite are distinctly earlier than all the other minerals and are followed by zine blende and tetrahedrite (jamesonite and galena). The calcite is earlier than the metallic minerals and is commonly found thickly impregnated with needles of jamesonite asin Plate XB. There does not appear to have been two distinct periods of mineralization, but simply a gradual cooling of the solutions as they precipitated their minerals in these veins. It seems unwarranted that these properties should remain idle at a time when lead and silver are in such demand. They could be reasonably proved at no great expense and they are admirably situated for co-operative handling of ore to a mill-site, say on the Shegunia river just below them; this stream could also furnish all the power necessary for a large develop- ment. At present there is a good wagon road from the railway at New Hazelton to the properties, a distance of about 10 miles by road. Properties on Fourmile Mountain. Fourmile mountain is situated about 4 miles northeast of Hazelton, just north of the Bulkley river, and is reached by a good wagon road. It rises to 2,200 feet altitude, or 1,400 feet above the river, and has an almost circular core of granodiorite which is about 4,000 feet in diameter. : On the north, west, and south sides of this mountain usually in the