Letter, from Henry Oldenburg to Robert Boyle, dated at London Concerns an account of a deformed baby; concerns the examination of vipers' teeth; concerning rattle snakes by Merret; experiments on the refraction of liquids; Zulichem's theory about figured pendulums; details about a new thermometer; about the aperture of telescopes and that Hooke is making a new instrument to grind lenses; concerning the Turkish translation of the Bible; concerning political/religious events (in French) - eg the declaration that Protestant churches must be destroyed in France, and relations between England and Holland 3 November 1664