The letter

surface prep

The canvas should be prepared with a ground suitable for oil painting. While specific priming recipes for Induno are not detailed in the sources, standard 19th-century practice involved a white or warm-toned gesso ground to allow for the layering of oil paints. The artist must ensure the surface is sound, as the knowledge of the medium's capacities is an essential requirement for the craftsman (Source 1).

underdrawing

The artist may begin with a sketch in pencil, charcoal, or thin oil to establish the general form and rough likeness, particularly if the composition is complex (Source 5). Given the genre nature of the work, a preliminary sketch helps in organizing the narrative elements. The underdrawing should not be so rigid as to prevent the artist from departing from the outline if necessary, avoiding being 'too tied down' (Source 1).

underpainting

An underpainting or 'first pass' is likely employed to establish broad masses and values before refining details. This aligns with the advice to deal with broad masses first, checking tendencies toward 'smallness' or over-modeling (Source 1). The underpainting should capture the essential forms and lighting without attempting final illusionistic detail.

Broad Masses vs. Detail

Induno, like other 19th-century painters, likely balanced broad masses with selective detail. The sources advise copying works that check tendencies toward 'smallness' or over-modeling (Source 1).

Material Vitality

The artist must use the oil paint to express feeling, not just create illusion. The medium’s vitality should be evident in the final work (Source 2).

Brush Selection

Using hog bristle for broad strokes and sable for fine details ensures the appropriate texture and precision (Source 6).