Transcriber's Notes:
Reading edition
Obvious punctuation errors repaired. Hyphenation and spelling was standardized by using the most prevalent form.
Page Correction
20 Aa ⇒ Aya
39 Ulugh Begh ⇒ Ulugh Beg
46 Astronomiæ Instaurata Mecanica ⇒ Astronomiæ Instauratæ Mechanica
58 Oscillatorium Horologium ⇒ Horologium Oscillatorium
225 seceded ⇒ succeeded
226 areoplane ⇒ aeroplane
320 Plate 2 - Vulpeculæ ⇒ Vulpecula