Le soleil et le firmament tournent mais la terre ne tourne pas.. - Le mascaret. Appendice à l'ouvrage "Le soleil et le firmament tournent mais la terre ne tourne pas". Réponse aux objections. - Stabilité de la terre prouvée par la photographie par un observateur.

3 works in 1 binding.8vo (22,5x14 cm). Contemporary halfmorocco, spine gilt; covers with marbled paper a few small rubbings to binding), marbled endpapers. 1) 101, (i:blank), (i:'Table'), (i:blank) pp. With 4 small text-figs.; 2)Frontcover wrappers preserved. xvi pp.; 3) Frontcover wrappers preserved. 16 pp. With 2 text-figs. - Paper age-toned; a few brown spots in places, but on the whole in good condition. - Extremely rare: very hard to find the 3 monographs together.