Labels:text | letter | ink | paper | font | sketch | drawing | document OCR: Art and science crossed at every point in Leonardo's imagination. His landscape studies of rocky outcrops, for example, contributed to his understanding of the earth's structure and formation while helping him to prepare for the execution of major paintings. This study can be related to his Virgin, Child, and St. Anne with a Lamb (ca. 1508-10), in which a similar formation appears in the background landscape. A Rocky Outcrop ca. 1510-15, black chalk 6 7/16 × 7 15/16 in. (16.4 x 20.1 cm) Windsor, Royal Library 12397
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