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 375
r. Ubi vero pulvis a gemmae duritie in tenuillimum poHinem reda^tusfantc enimgrof- fo modo tantum contufus fuit)nulla amplius afpe- ritatem , ut in gemmam agerepoffit , habere ani- madvertitur : novus , vel recens fubflituitur ; Ita paulatim gemm^e durities fuperatur, ac ligni inftar fecatur. Aqua… … Ad lapides perforandos aliud inftrumentuni commodiffimum eft. Fiat fruftum chalybis unius pedis longitudine, rotundumproamplitudinefo- raminis» Ddnde in e^iiremitatc , feu plaua ipfius bafi.
Precious stones · Rocks · Fossils
Internet Archive · Sterling and Francine Clark Art Institute Library · Public domain (published before 1931). Free to use for anything.
