Chap. 3. PHILOSOPHY. 21$

Since therefore the inclination of the orbit increafes, whilethe moon is palling from B to K, and diminilhes itfelf a-gain only, while the moon is palling from K to R, and thenaugments again, till the moon arrive in L; while the moon ispalling from B to L, the inclination of the orbit is much moreincreafed than diminilhed, and will be diftinguilhably greater,when the moon is come to L, than when it let out from B.

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3 9. In like manner, while the moon is palling from L onthe other lide the plane A G C H, the node lhall advance for-ward, as long as the moon is between the point L and the nextquarter; but afterwards it lhall recede, till the moon cometo pafs the plane A G C H again in the point V, between B andA : and becaufe the time between the moon’s palling fromL to the next quarter is lefs, than the time between that quar-ter and the moon’s coming to the point V, the node lhallhave more receded than advanced ; fo that the point V willhe nearer to A, than L is to C. So alfo the inclination of theorbit, when the moon is in V, will be greater, than when themoon was at L ; for this inclination increafes all the time themoon is between L and the next quarter ; it decreafes onlyWhile the moon is palling from this quarter to the mid waybetween the two nodes, and from thence increafes again du-ri ng the whole palfage through the other half of the way tothe next node.

4.0. Thus we have traced the moon from her node inthe quarter, and fhewn, that at every period of the moon thell °des will have receded, and thereby will have approached

toward