Mémoire des avantages que procurera la géométrie sublime étant démontrée dans tout son jour. L’astronomie, la navigation, la géométrie & la géographie, en retireront de grands secours, par les exactes solutions des problêmes nécessaires à ces quatre parties de mathématique. Dans ce mémoire, sont évidemment démontrés la fausseté du 1er theorême des limites données par Archimede, touchant le rapport du diametre a la circonférence du cercle ; ce qui empêche d’avoir une aliquote commune entre le côté du quarré & sa diagonale, la quadrature du cercle & du vrai ellipse, par les propriétés qu’ont entr’eux leurs exacts rapports, l’obstacle qui empêche d’avoire la précise hauteur des astres, & le moyen de s’en assurer avec une précision parfaite.

Knuf Rare books was founded in the 1950s by Frits Knuf in the Netherlands.  After an apprenticeship with Frits I took over the firm in 1996 which we then moved to France in 2001 where we are still based. The business is run from our home in Lavardin, one of the most beautiful villages of France located  in the Loire Valley, that can easily be reached from Paris. Visitors are most welcome, but by appointment please. I am interested in the History of the Book and have a good inventory of rare and uncommon printed books, ephemeral items, prints and manuscripts from the incunable period to the twentieth century. My stock is especially strong in early auction- and library catalogues, type specimens, continental printer’s and engravers manuals, calligraphy manuals. Another interest is early continental architecture books and early art auction catalogues. Every year I issue two fully illustrated and annotated printed catalogues that are sent out upon request. In addition to that I also send out short email lists every week with a selection of books about books from our stock. And of course, I exhibit at several major international book fairs, such as New York, Boston and Paris. We work mainly with institutional customers, and are happy to discuss special institutional requirements. I adhere strictly to the professional standards and code of conduct of the International League of Antiquarian Booksellers and the Syndicat national de la Librairie Ancienne et Moderne (SLAM),  and the Compagnie Nationale des Experts (CNE) to which I belong. I have been an international rare book dealer for over 25 years and am a member of the Nederlands Genootschap van Bibliofielen. If you want to buy or sell single books or whole collections, have an expert valuation or if would just like some advice, please do not hesitate to contact me.