Part of American Memory. Cristiani Hugenii Systema saturnium, sive, De causis mirandorum Saturni phnomenon et comite eius planeta novo. A collection of converters, units and measures, data tables and facilities, including tables of US and UK capacities, periodic table, table of physical constants, and old measures for various trade goods.
Site also includes an exhibit.
Searches return abstracts and citations for relevant articles from more than a dozen scientific journal publishers. These amount to approximately 10,000 manuscript pages and include correspondence, principally letters received, but also reports, invoices and accounts, journals, plus a small quantity of maps, charts and watercolours.