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If you spot an error, have a suggestion, or just want to say hello — we’d love to hear from you.

if not for its industry, I at least wish it to be a testament to the fruit of my labor, and evidence of how much I am and shall forever be your debtor. May the immortal God keep you long safe and unharmed for the sake of medicine, literature, the public, and indeed for me and all good men. Written at Leiden original: "Lugduni-Batavorum" in the month of August, in the year 1657.