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3. Cape Brown and Hurry Inlet series. Cape Brown is the 

 most northerly headland on the E. shore of Fleming Inlet. The 

 Expedition here landed but for a very brief space, which only 

 enabled me to collect what was cropping out nearest the shore. 

 There were mighty banks of red and green schists, sometimes 

 compact and more hornstone-like, but as a rule well charac- 

 terized by the plentiful presence of a micaceous mineral which 

 gives the surface of the strata a vivid sheen. From this I 

 got an impression that the rock was rather crystalline, which 

 is however disproved by the microscopical examination. The 

 green rock here seems to consist of angular grains of quartz^ 

 while plagioclase and other minerals are less abundant, with 

 lamina of muscovite and green chlorite or chloritic biotite, 

 cemented by a strongly doublerefractive carbonaceous mass. 

 The structure is thus purely clastic. The schist is sometimes 

 shattered and cemented into a breccia by crystalline limestone or 

 it contains veins of calcite of a few centimetres in breadth. 



Furthermore I here came across, near the shore, a still 

 more remarkable rock, viz. u coarse, firm conglomerate with 

 an intermediate mass of red, green and dark grains the size 

 of a pin's head and very many rounded balls of the most 

 varied pétrographie character, granites of varied appearance, 

 some of them coarse; further, grey quartzite, and a mixture of 

 different kinds of many-coloured porphyries and porphyrites. 

 I have microscopically examined both the matrix and a number 

 of the balls. The former consists of a fine-grained, micaceous 

 mass in which lie now angular, now rounded grains of quartz, 

 felspar and heterogeneous fragments of rock. Among the bails 

 the porphyries ofiFer most interest. There are varieties both 

 with and without porphyritic quartz, while all the specimens 1 

 examined contain phenocrysts of green chloritic mass which 

 in its often regular hexagonal form shows that it is the pseu- 

 domorph of biolite, very like those described from the eruptive 

 rocks at Cape Fletcher. The ground-mass is now dense, 



