200 east of Blackpine Lake. Along the borders of this body, associated with typical diopside-garnet-tremolite skarn and feldspathized gneissic quartz- ite, are several deposits of pyrrhotite containing minor amounts of pyrite, arsenopyrite, and chalcopyrite. The deposits, as for example those of the Hope group, do not appear to have any commercial significance. The Ruby prospect, on Jim May Creek, is in quartz-mica schists of the Tenakihi group near small feldspar porphyry and granophyre stocks and sills. Here a northeasterly trending, silicified fault zone is erratically mineralized by sphalerite, pyrite, galena, tetrahedrite, ruby silver, and arsenopyrite. Similar minerals have been found in the Tenakihi group rocks east of the head of Jim May Creek. Small veins in Tenakihi quartzites and schists south of Mount Lay contain galena, tetrahedrite, and ruby silver. The deposits of the Orion group, in Tenakihi quartz-mica schists on Orion Creek, consist of quartz veins mineralized with galena and some pyrite and tetrahedrite. The metallic mineral deposits in the Ingenika group are, with one excep- tion, confined to the limestones or calcareous argillaceous rocks. The largest known deposits are those of the Ferguson group, near Lookout Hill in Ingenika River Valley. There, thick-bedded, relatively pure limestone, locally highly silicified, has been largely altered to siderite and replaced along bedding planes by crystalline galena and sphalerite, with minor pyrite, pyrargyrite, tetrahedrite, chalcopyrite, and marcasite. The best deposits are confined to four bed-like bands, 2 to 8 feet thick, which have been traced for about 450 feet down the dip. At the Onward property, 14 miles south and considerably lower stratigraphically than the Ferguson deposits, small, flat-lying, sheet-like bodies of relatively coarse-grained galena and sphalerite are found lying parallel with thinly bedded, silicified, iron-stained limestone. Mineral deposits of both the fracture-filling and replacement types are found in closely folded and sheared argillites and impure limestones on the Swannell group of claims. Quartz veins and silicified beds, sporadically mineralized with sphalerite, galena, pyrite, and chalcopyrite, occur at frequent intervals across an exposed width of about 450 feet. The best showings are in quartz veins lying parallel with the bedding. The large bed of limestone forming the crest of the ridge east of the mouth of Tenakihi Creek contains a vein about 1 foot wide composed almost entirely of fine-grained galena. The deposits of the Beveley group, a few miles east of the above showing, consist of low-grade, widespread replacement bodies and dis- seminations of galena and very minor sphalerite, accompanied by much barite, in a highly folded, sheared, dolomitized limestone near a prominent shear or fault zone. In what is probably the same belt of rocks, about 3 miles east of the east border of the map-area, the Childhood Dream deposits consist of massive to coarse-grained pyrite, accompanied by galena and sphalerite, as irregular replacement bodies and breccia fillings near a steeply dipping fault in blue-grey to rusty, coarsely crystalline limestone.