Elementos de geometria, by Alexis-Claude Clairaut 78897 [Author: Alexis-Claude Clairaut] [Translator: Joaquim Carneiro da Silva] [Language: Portuguese] [Link: https://www.gutenberg.org/ebooks/78897] note: link will be active within two hours of posting. Thanks to Rita Farinha, Hendrik Kaiber, Alberto Manuel Brandão Simões and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by National Library of Portugal (Biblioteca Nacional de Portugal).) Regards, Al