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LIGHT and SHADOW.
Chap. CLXXV.—The Course of Study to be pursued.
The student who is desirous of making great proficiency in the art of imitating the works of Nature, should not only learn the shape of figures or other objects, and be able to delineate them with truth and precision, but he must also accompany them with their proper lights and shadows, according to the situation in which those objects appear.
Chap. CLXXVI.—Which of the two is the most useful Knowledge, the Outlines of Figures, or that of Light and Shadow.
The knowledge of the outline is of most consequence, and yet may be acquired to great certainty by dint of study; as the outlines of the different parts of the human figure, particularly those which do not bend, are invariably the same. But the knowledge of the situation, quality, and quantity of shadows, being infinite, requires the most extensive study.
Chap. CLXXVII.—Which is the most important, the Shadows or Outlines in Painting.
It requires much more observation and study to arrive at perfection in the shadowing of a picture,
