Astronomical discovery
Astronomical discovery, by Oxford astronomer H. H. Turner, published in London by Edward Arnold in 1904, recounts for general readers and students how planets, asteroids and stellar phenomena were found. The plates are photographic star fields with ruled coordinate grids and minute black dots, plus white-on-black line charts pairing sunspot numbers with magnetic needle readings, offering stipple textures, thin grid frames and inverted graph line work.
