00814cam a22002291  4500001001300000003000400013005001700017008004100034010001700075035001900092040005300111042001200164050001600176100005300192245014800245260003700393300003700430650001600467700004200483700004400525999001500569agr26001515 DLC20260227110946.0771219s1926    enkf          000 0 eng c  aagr26001515   a(OCoLC)3502050  aLibrary, U.S. Dept of AgriculturecCCCdCCCdDLC  apremarc00aQC391b.D671 aDobson, G. M. B.q(Gordon Miller Bourne),d1889-10aPhotographic photometry;ba study of methods of measuring radiation by photographic means,cby G. M. B. Dobson, I. O. Griffith, D. N. Harrison.  aOxford,bClarendon Press,c1926.  a121 p.bplates, diagrs.,c19 cm. 0aPhotometry.1 aGriffith, Idwal Owain,ejoint author.1 aHarrison, Douglas Neill,ejoint author.  c9064d9064