... 3 feet . 47 feet . Maximum , 70 feet III Bowlder stratum ( quartz and granite ) .. 10-20 feet . None absolutely barren , but the bulk of the gold is thought to come from the lowest quarter of the bank . IV Bed - rock granite ; hard when ...
The Lignites of the Great Sioux Reservation: A Report on the Region Between the Grand and Moreau Rivers, Dakota
... text , p . 21 . Fig . 3 illustrates the twin structure and optical properties of phillipsite , as described by Trippke . See text , p . 23 . Figs . 4 , 5 , and 6 show the optical anomalies observed in the apophyllite of Table Moun tain ...
... planicon- vexa ....... 30. Rhipidomella cumber- landiæ 31. R. musculosa 32. R. oblata ... r a r r r с с 33. Gypidula pseudogaleata 34. Amphigenia cf. elongata 35. Rhynchotrema formo- sum .. 36. Camarotachia ventri- cosa . 37. Uncinulus ...
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