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47. On the evolution of ornament — an 
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48. A West Virginia rock shelter. Ibid., 
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49. Recent work in the quarry work- 
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50. Excavations in an ancient soapstone 
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1891 55. Manufacture of stone arrow-points. 
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56. Thruston tablet. Ibid., pp. 161- 
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57. Aboriginal novaculite quarries in 
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65. Sacred pipestone quarries of Minne- 
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66. Aboriginal quarries of flakable stone 
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67. On the so-called palaeolithic imple- 
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68. Report on the department of Ameri- 
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