A manual of problems on the globes. Designed as an accompaniment to Williamson's patent concentric celestial and terrestrial globes
A teaching manual of exercises for Williamson's patent concentric celestial and terrestrial globes, published by Harper & Brothers in New York in 1868 for schoolroom use. The plates here are letterpress fragments listing constellations by compass bearing — Cassiopeia, Draco, Sagittarius, Camelopardalus — set in rotated type with large curly braces grouping paired names, useful as astronomical word lists and bracket ornaments.
