T R A C T ATV: URCICOM- a s be , Tubo; er ies OC A POY T ES . De Tubi optici inuentore … infpicere potuerint? dubitationem au- fert, non folum quod à Porta narratur de Ptolomei dioptrico inflrumento; ad longiffimé difíita infpicienda ;fed in primis id quod apud Cyffatu m,inquit,nofirum leges cap. 7.de C ometis, qui ex occafioneacutiffima obfervationis circa Cometas, hec fcribit in fine…
Astronomy -- Early works to 1800 · Telescopes · Microscopy
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
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