Causes of the English disease (rickets): (left) unsuitable food and (right) poor housing. Colour lithograph, 1922.

(Left) a mother feeds a baby with a bottle containing a proprietary drink (the packaging is on the table); (right) the mother and child sit in the doorway of their basement dwelling, and a little boy plays with a toy horse in the street: all three are in the shadow of an adjacent building, as the sunlight passes over them. The basement dwelling is the business premises of Paul Bumke, possibly a builder, as it carries the sign of crossed mallets