This small engraving, which appears in the text as part of the introductory chapter, shows the crater Plato at the right, with Aristotle and Eudoxus at left, and the mountain range of the Alps cut by the dramatic slash of the Alpine valley. Bianchini noted with surprise that the valley did not appear on the great Cassini map, and he was right; Bianchini was the first to see and to portray this most impressive of lunar valleys. Bianchini also observed that the crater at top center was pictured but not named on the Cassini map. He left it to his successor, Schröter, to take the next logical step and give it the name still used: Cassini. Image source: Bianchini, Francesco. Hesperi et phosphori nova phaenomena siue observationes circa planetam Veneris. Rome: Apud Joannem Mariam Salvioni, 1728, p. 6.

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