120 A. WINCHELL — A LAST WORD WITH THE HUKONIAN. 



Immediately east of this the slate appears again. Nearer the summit the 

 slate is laminated, sericitic argillite standing about vertical. Still nearer the 

 summit is a considerable iron location, partly exploited. In the pit the 

 rocks lie in such confusion that no system of structure can be discovered. 

 On the slope above the pit are remnants of laminated sericitic schist squeezed 

 in between masses of quartz in most irregular fashion. The trench dug here 

 is east and west, but this does not appear to be the strike of the formation. 

 There is neither distinct vein nor stratum. From a central tract, along 

 which the iron is most concentrated, it diffuses itself through the quartz- 

 charged formation, so that the breadth of space showing good indications of 

 iron is about eight feet. 



Close by this the sericitic argillite, standing vertical, strikes N. 75° E. 

 On the north side of this pinnacle, overlooking Fairy lake, the gnarled 

 Kewatian schists outcrop in frequent ledges. 



Passing on to the northeast, a cliff (number 14) is reached, in which slate 

 and felsite are so mixed that the attitude of the formation could not be 

 readily determined. In the hill (number 15) separated from the last by a 

 ravine is an outcrop petrographically similar, and with strike and dip 

 equally uncertain. 



Continuing northward across another ravine, we find (in hill number 16) 

 regular blue-black argillite, the exact counterpart of that about the western 

 end of Knife lake in Minnesota. The strike appears to be N. 50° W., but 

 after climbing over an enormous talus of huge sharp-edged fragments and 

 seeking the mass of the formation, we found bedding lines, cleavage and 

 joints in such a state of obscurity that we reached no certain conclusion. 

 We incline, however, to regard the cleavage coincident with the bedding. 

 The sight of these smooth-faced slabs afforded relief to the eye so long accus- 

 tomed to the harsh surfaces, twisted fibers and knotted structures of the 

 green schists associated with the lower slate conglomerate. The day was too 

 far spent to pursue the traverse further. We may fairly conjecture, how- 

 ever, what would be probably the further succession of strata to the passage 

 into crystalline schists and gneisses. 



These ancient schists have been traced westward from Echo lake half 

 way to Goulais bay, on the east shore of Lake Superior. We know that 

 similar schists exist in the rear of Gros Cap, and probably connect with 

 those at Goulais and Bachewahnung bays. We feel great confidence in 

 conceiving a continuity between them and the schists of Echo lake. We 

 know that the same schists and schist conglomerates reappear at the mouth 

 of Dore river, and we are not disposed to differ from Sir William Logan in 

 following the same formation as far as Thunder bay. 



In the opposite or southeastern direction from Echo lake the lower slate 

 conglomerate mass trends toward the similar mass seen on the north side of 

 the valley of Thessalon river, especially in Murray's hill, on the east of Rock 



