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005 20260227111302.0
008 790220s1905 dcuabf b f001 0 eng
010 _ags 05000909
035 _a(OCoLC)4671699
040 _aDLC
_cICharE
_dDLC
042 _apremarc
043 _an-us-ak
050 0 0 _aQE75
_b.B9 no. 263
100 1 _aPurington, Chester Wells,
_d1871-
245 1 0 _aMethods and costs of gravel and placer mining in Alaska /
_cby Chester Wells Purington.
260 _aWashington,
_bGovt. Print. Off.,
_c1905.
300 _a273, vii p. :
_bill., xlii pl. (2 fold. incl. map) diagrs. ;
_c24 cm.
490 1 _aU.S. Geological survey. Bulletin
_vno. 263
500 _aSubject series: A, Economic geology, 55.
500 _a"Notes on dredging, by J. P. Hutchins": p. 173-190.
504 _aBibliography: p. 261-262.
500 _aIncludes index.
650 0 _aGold mines and mining
_zAlaska.
810 2 _aGeological Survey (U.S.).
_tBulletin ;
_vno. 263.
999 _c24318
_d24318