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Then by placing the eye directly above the line AB it will appear single only; and one will see that the portion viewed through the Crystal and the portions which appear outside it, meet together in a straight line: but the line CD will appear double, and one can distinguish the image which is due to regular refraction by the circumstance that when one views it with both eyes it seems raised up more than the other, or again by the circumstance that, when the Crystal is turned around on the paper, this image remains stationary, whereas the other image shifts and moves entirely around.

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Since then CI is the refraction of the radius BC, and DI is parallel to CM, VC must be to CD as N to GC, according to what has been demonstrated in Article 31.

She then put in a little fresh water, and as the quantity of sand was now much diminished, she held the calabash in an oblique direction, and made the sand move slowly round on the line AB, while she constantly agitated it with a quick motion in the direction CD.

The light will increase from A to C up to the moment when the objective is entirely uncovered, and will then immediately decrease up to B. The objective has operated with a maximum of light for only a short time. We are far from the ideal result in which the maximum of light, CD, should exist during the entire exposure, and form the upper plane precisely equal to AB.

The question of infinity is another topic of importance for proving the existence of God. We proceed as follows: An infinite line is an impossibility. For let the lines a b be infinite in the c | -d e directions b, d. Take away from cd a finite length = ce, and pull up the line ed so that e coincides with c.

Thereupon Lord Midleton and a small aristocratic clique associated with him seceded from the Alliance, and set up a little organisation of their own. Cd. 9019. While the Irish Convention was toilfully bringing to a close its eight months' career of futility, the British Empire was in the grip of the most terrible ordeal through which it has ever passed.

As then, CK is to KO, so also is RC to CV. But KO is equal to N, and RC to CG: then as CK is to N so will CG be to CV. But as N is to CG, so, by construction, is CV to CD. Then as CK is to CG so is CG to CD. And because DI is parallel to CM, the conjugate diameter to CG, it follows that KI touches the Ellipse at I; which remained to be shown.

Look out for the bone, therefore, between the points CD and AF. Never forget when painting an eye that what we call the white of the eye is part of a sphere and will therefore have the light and shade of a sphere. It will seldom be the same tone all over; if the light is coming from the right, it will be in shade towards the left and vice versa.

What elevations stood above the surface cd? Why? What name may you use to designate them? How does the length of time needed to develop the surface cd compare with that needed to develop the valley lowlands? THE PLATFORM AND PLATEAU. Why do they stand at a common level ab? Of what surface may they be remnants? Is it accordant with the rock structure? How was it produced?