000 00802cam a22002171 4500
001 gs 16000502
003 DLC
005 20260227111319.0
008 780331s1916 xx 000 0 eng c
010 _ags 16000502
035 _a(OCoLC)3768053
040 _aLibrary, U.S. Geological Survey
_cOT
_dDLC
050 0 0 _aTN490.A2
_bP7
100 1 _aPratt, Joseph Hyde,
_d1870-1942.
245 1 0 _aZircon, monazite and other minerals used in the production of chemical compounds employed in the manufacture of lighting apparatus,
_cby Joseph Hyde Pratt, PH.D.
260 _aRaleigh, N.C.,
_bEdwards & Broughton printing co.,
_c1916.
300 _a120 p.
_bmap, plans.
_c25 cm.
490 0 _aNorth Carolina. Geological and economic survey. Bulletin
_vno. 25
650 0 _aRare earths.
650 0 _aLighting.
999 _c25687
_d25687