La vana speculazione disingannata dal senso : lettera risponsiua circa i corpi marini, che petrificati si trouano in varij luoghi terrestri / di Agostino Scilla ..
A 1670 Neapolitan treatise by Agostino Scilla, printed by Andrea Colicchia, arguing that petrified sea creatures found on land are true fossils rather than sports of nature, written for a learned readership of natural philosophers. Its copper-engraved plates show fossil shells, sea urchins and stony mineral forms, drawn in fine parallel hatching with lettered figures for reference. A designer might borrow the dense crosshatched shading and the orderly grid of numbered specimen plates for textures or scientific diagram layouts.
