Book IV, Part 29 · 54 of 253
Refutation of All Heresies
English, translated by Alexander Roberts and James Donaldson — Roberts & Donaldson, 1885
Chapter XXIX.—Display of Different Eggs. But different eggs they display after this manner. Perforating the top at both ends, and extracting the white, (and) having again dipped it, throw in some minium and some writing ink. Close, however, the openings with refined scrapings of the eggs, smearing them with fig-juice.