The text, described as the Eleventh Lesson, suggests methods for mastering drawing with white and black chalk on colored paper. It emphasizes gaining proficiency through imitation of highlighted drawings. The passage conveys the importance of practice and habit in achieving mastery in drawing.
Eleventh Lesson
After discussing the sketch and position of figures in the sixth and ninth lesson, as well as the technique of hatching in the eighth lesson, it will be helpful to approach the drawing that is done with white and black chalk on blue or gray paper. To gain proficiency in this regard, there is no better way than practicing by imitating drawings highlighted with white and plaster, as the saying goes, 'Habit is a second nature'...
Translation Notes: 'Crayon blanc & noir' refers to white and black chalk, which was a common drawing medium in the period. 'Dessein' is used here to mean 'drawing' or 'design.'