A continuation of nevv experiments physico-mechanical, touching the spring and vveight of the air, and their effects. The I. part. Written by way of letter, to the Right Honourable the Lord Clifford and Dungarvan. VVhereto is annext a short discourse of the atmospheres of consistent bodies/ By the Honourable Robert Boyle, Fellow of the Royal Society. - Boyle, Robert, 1627-1691 (Richard Davis, 1669)