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Lahire in 1700 considered them regard being had to difference of distance to be much more strongly marked than those visible in the moon.
Father Scheiner's later observations plainly foreshadowed it; a conjecture to the same effect was emitted by Leonard Rost of Nuremburg early in the eighteenth century; both by Lahire in 1703 and by J. Cassini in 1719 spots had been seen as notches on the solar limb; while in 1770 Pastor Schülen of Essingen, from the careful study of phenomena similar to those noted by Wilson, concluded their depressed nature.
In 1715 a novel explanation had been offered by Delisle and Lahire, supported by experiments regarded at the time as perfectly satisfactory. The aureola round the eclipsed sun, they argued, is simply a result of the diffraction, or apparent bending of the sunbeams that graze the surface of the lunar globe an effect of the same kind as the coloured fringes of shadows.
This interesting collection is composed of about three hundred paintings, amongst which we remark a Virgin in the midst of Angels, called the Virgin of Saint-Sixte, by Raphael, an admirable copy, if not a second original of the picture known under the same name in the gallery of Dresden; also three small paintings, placed next to each other, and which are incontestably by that great painter and in his best style; the Van Eyck representing the Virgin in the midst of young girls; a mass during the league, a painting which is curious on account of the subject and great personnages which it represents; a Conversion of saint Matthew, by Valentin; a saint Francis in prayer, by Hannibal Carrache; an Ecce Homo and a copy of the Holy family, by Mignard; a death of saint Francis, by Jouvenet; several marines, by Vernet; a descent from the Cross, by Lahire; the plague of Milan, by Lemonnier, of Rouen; and a great many others, which it would require too much room to mention here.
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