The Digital Ark: Early Modern Collections of Curiosities in England and Scotland, 1580-1700
Star-stone

Click image for full-size. In Print: Extracts of three letters: The one of M. Hugens, about a new invention of very exact and portative watches, serving to find the longitudes both at sea and Land: The second, of Dr . Swammerdam, touching an un-usual rupture of the the mercentery: The third, containing some observations of Mr. Lister about the star-stones; together with Mr Rays annotations thereon, Tab. 2