Fig. 37a
In series eight I drew a sky-rocket going up. My first impulse had been to draw a bursting rocket, with a shower of stars, but I realized that would be difficult, so I drew this instead (Fig. [38]):
Fig. 38
My wife apparently took my first thought, rather than my drawing. Anyhow, she made half a dozen sketches of whirligigs and light (Figs. [38a], [38b], [38c]):
Fig. 38a
Fig. 38b