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Although that fundamental part of astronomy known as "celestial mechanics" lies outside the scope of this work, and we therefore pass over in silence the immense labours of Plana, Damoiseau, Hansen, Delaunay, G. W. Hill, and Airy in reconciling the observed and calculated motions of the moon, there is one slight but significant discrepancy which is of such importance to the physical history of the solar system, that some brief mention must be made of it.

In this last test, Harrisse prefers to apply the description of Las Casas, which is borrowed in part from that of the Historie, and he reconciles Columbus's apparent discrepancy when he says in one place that the island was "pretty large," and in another "small," by supposing that he may have applied these opposite terms, the lesser to the Plana Cays, as first seen, and the other to the Crooked Group, or Acklin Island, lying just westerly, on which he may have landed.

It is 14 miles in diameter, has a distinct crater on its S. wall, and, according to Schmidt, a crater on the E. side of the floor. PLANA. A formation 23 miles in diameter, closely associated with the last. Neison states that the floor is convex and higher than the surrounding region.

In villages too poor to possess pasos the beautifully modelled life-size figures which form the tableaux in the rich churches and processions human actors take their place. In Castellon de la Plana, where there is a yearly procession in honour of Santa María Magdalena, somewhat curious scenes take place.

The lunar and planetary theories, the beautiful theory of Jupiter's satellites, the figure of the earth, and the tides, were mathematically treated by Maclaurin, D'Alembert, Legendre, Clairaut, Euler, Lagrange, Laplace, Walmsley, Bailly, Lalande, Delambre, Mayer, Hansen, Burchardt, Binet, Damoiseau, Plana, Poisson, Gauss, Bessel, Bouvard, Airy, Ivory, Delaunay, Le Verrier, Adams, and others of later date.

This coefficient has for its multiplier the square of the number of centuries which have elapsed from a given epoch; its value was found by Laplace to be 10".18. Mr. Adams has ascertained that it must be diminished by 1".66. This result has recently been verified by the researches of M. Plana. Its effect will be to alter in some degree the calculations of ancient eclipses. Adams. Translator.

About this time, M. Méchain, who had been sent to Spain to prolong the meridional line as far as Formentera, died at Castellon de la Plana. His son, Secretary at the Observatory, immediately gave in his resignation. Poisson offered me the situation. I declined his first proposal.

I retrograded to Plana, and thence, by the urgent counsels of Bozo, to Cettinje, as the position was critical, and the campaign might take an unexpected turn and make my escape impossible.

The reports of the fight from Bozo sent me down to get the details of the victory, of which he had given me by telegraph a summary account, and I arrived at his headquarters at Plana, overlooking the Turkish movements, late that afternoon, accepting an invitation to pass the night and see the operations of the next day.

Peterborough afterwards took possession of Nules, and purchasing horses at Castillon de la Plana, began to form a body of cavalry which did good service in the sequel.