J. Henry Middleton, Illuminated Manuscripts in Classical and Mediaeval Times… (1892)
“ It is difficult to say to what extent illuminated manuscripts were known to the ancient Greeks, but they were certainly not uncommon in Rome towards the close of the Republic; and it may fairly be assumed that it was from the Greeks that the very inartistic Romans derived the custom of decorating manuscripts with painted miniatures.Illustrations in Roman MSS. Pliny tells us (Hist. Nat. XXXV. 11) that a number of manuscripts in the library of M. Varro in the first century B.C. contained no less than 700 portraits of illustrious personages. ”
