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Geolog. Trans. Vol 3. 2d series

Remarks on the structure of large Mineral Masses &c. by Rev. Prof. Sedgwick.

p 471  cleavage planes, with flakes of chlorite striking the whole mass.

p 472  on an average in N.W. inclination from 30°-40° - does not any case of double cleavage

p 473 few exceptions to rule, where the cleavage is well developed "its strike is nearly coincident with the strike of the beds"

p 474 Stripes of different shades of colour always parallel to the beds

p 477  slaty cleavage affect beds of limestone &c so as to break at right angles. (is not this opposed to crystalline action) (also refer to this under Falkland Isd)

p 478  attributes cleavage to a form of crystallization due to the polarity of the separate particles.

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p 479 believes the foliated uneven layers of the older formations belongs to beds & not to cleavage - have no true slaty cleavage.

p 482 even granite traces of cleavage - on the grain of the rock.

(NB remember that the elevatng force, is not coincident with cleavage, from these planes having guided its outbreak, because the elevation is anterior (refer to this at Rio, & at Portillo Range)

p 483 describes a laminated granite - believes most of the gneiss of Scotland undoubtedly beds

Give my proposition with no theory - except in a note