The London, Edinburgh and Dublin philosophical magazine and journal of science . Illustrating- the Emission of Light by the Boundary of aCircular Diffracting Aperture. B ASTER JT. Phil. Mag. Ser. 6. Vol. 37. PL FIGS 17,18,19 20,21,22 23,24,25 Illustrating the Emission of Light by the Edges of Apertureswith Rectilinear Boundaries. THELONDON, EDINBURGH, and DUBLIN PHILOSOPHICAL MAGAZINE AND JOURNAL OF SCIENCE. [SIXTH SERIES.] FEBRUARY 1919. XVII. The Ah sorption of X-R&ys^By Tycho E:SON Aurkn, Dr. phil* I. Method of Investigation. SINCE Moseley has ascertained that there is a simplerelation


The London, Edinburgh and Dublin philosophical magazine and journal of science . Illustrating- the Emission of Light by the Boundary of aCircular Diffracting Aperture. B ASTER JT. Phil. Mag. Ser. 6. Vol. 37. PL FIGS 17,18,19 20,21,22 23,24,25 Illustrating the Emission of Light by the Edges of Apertureswith Rectilinear Boundaries. THELONDON, EDINBURGH, and DUBLIN PHILOSOPHICAL MAGAZINE AND JOURNAL OF SCIENCE. [SIXTH SERIES.] FEBRUARY 1919. XVII. The Ah sorption of X-R&ys^By Tycho E:SON Aurkn, Dr. phil* I. Method of Investigation. SINCE Moseley has ascertained that there is a simplerelation between the frequency of X-ray spectraand atomic number, we may rendily assume that therewill be a similar relation when examining X-rayabsorption in different elements. By way of ascertainingthis kind of relation, I have made determinations ofabsorption in a number of elements. In so doing I haveintroduced a method of investigation which I have moreparticularly described in a preliminary paper f. Thismethod has in view, by means of a procedure of com-pensation and by using a non-homogeneous radiation,the endeavour to determine the relation between theabsorption coefficient of a certain element and the


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Keywords: ., bookcentury1800, bookdecade1840, booksubjectscience, bookyear1840