. Geological magazine. 1 On certain Movements in the Parts of Stratified Eocks, Brit. Assoc. by Sharpe, loc. cit. p. 76. 2 Phil. Mag. vol. xii. p. 198. Rev. 0. Fisher— On Cleavage and Distortion. 399 One mode of representing the distortion by shearing in a planeperpendicular to the strike (the plane of dip) is as follows. Drawa number of lines parallel to the shear, dividing the circumference ofthe circle of Fig. 1 into equal small arcs, and produce these lines tocut the ellipse. The points where they cut the ellipse will be theplaces, in which the corresponding points of the circl
. Geological magazine. 1 On certain Movements in the Parts of Stratified Eocks, Brit. Assoc. by Sharpe, loc. cit. p. 76. 2 Phil. Mag. vol. xii. p. 198. Rev. 0. Fisher— On Cleavage and Distortion. 399 One mode of representing the distortion by shearing in a planeperpendicular to the strike (the plane of dip) is as follows. Drawa number of lines parallel to the shear, dividing the circumference ofthe circle of Fig. 1 into equal small arcs, and produce these lines tocut the ellipse. The points where they cut the ellipse will be theplaces, in which the corresponding points of the circle will be foundafter being sheared. (It is easy to conceive an analogous con-struction if the circle has been compressed as well as sheared.)And points along the radii of the circle will take up their positionsalong these radii of the ellipse, as defined by their intersections withthe parallel lines. We may then, if we please, draw our fossil, orother object, within the circle ; and draw a distorted figure withinthe
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