III. Extracts from Mr. Gascoigne's and Mr. Crabtrie's letters, proving Mr. Gascoigne to have been the inventor of telescopick sights of mathematical instruments, and not the French

This text was harvested from a scanned image of the original document using optical character recognition (OCR) software. As such, it may contain errors. Please contact the Royal Society if you find an error you would like to see corrected. Mathematical notations produced through Infty OCR.