Note 7 — Chapter I · THE CONTRIBUTION OF THE ANCIENT WORLD
Reading edition
Columba (Questione soliniana, 1920) holds that the materials in Solinus’ Collectanea came in large part from a common source of Pliny’s Natural History and Pomponius Mela’s Corographia. This was a lost work which Columba styles Corographia Varro-Sallustiana. It was worked over (according to his theory) by an unknown compiler and reduced by Solinus into the form of a compendium, with borrowings here and there direct from Pliny. See note on Columba’s monograph in Bollettino della Reale Società Geografica Italiana, vol. lviii, Rome, 1921, p. 44.