Boodt, Anselmus de, 1550-1632, Tollius, Adrianus, 17th cent, Laet, Joannes de, 1593-1649. De gemmis et lapidibus libri duo, Theophrastus. History of stones. Latin & Greek · Lugduni Batavorum [Leiden] : Ex officina Ioannis Maire · leaf 377
uram habere,quam literaKdemon- ftrat. Si artifex velit, fadb prius in medio lapidis F foramine ope inftrumenti D, per foramen ini- mittitur inftrumentum iam didum,ac paulatim ex- cavatur lapis , donec ad circulum perveniatur , & pars eximatur.Si circulus fatis craflus fuerir,per cir- culum poteft… … Ad planities (culpendas gemmarii rota lignca A utuntur , c qua furrum verfus crigitur manu- brium
Precious stones · Rocks · Fossils
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