Fall 2018 was the eighth offering of the Laboratory Seminar HIST GR8906: Craft and Science: Objects and Their Making in the Early Modern World at Columbia University by the Making and Knowing Project. The course contributed to the collective production of Secrets of Craft and Nature in Renaissance France. A Digital Critical Edition and English Translation of BnF Ms. Fr. 640. The yearly theme was Making Impressions, and students in the course explored processes related to this theme and conducted hands-on reconstructions of related entries in BnF Ms. Fr. 640. Organized by student researcher, the pages below are results from their skill building work in the beginning of the semester as well as their "Annotation" work. As students worked towards composing critical commentary for Secrets of Craft and Nature in the form of Research Essays, they kept “Annotation” fieldnotes to document their research process, reconstructions, and hands-on work in the laboratory.