Science – Edmund Halley, astronomer edition of the Philosophical Transactions for June 1697, containing a letter from Halley concerning his Torricellian experiment on the top of Mount Snowdon. The publication also features a letter from Halley describing an extraordinary hailstorm in Cheshire. The storm must have been extensive as the publication features extracts from letters describing a similar phenomenon in Herefordshire, Hertfordshire (this letter written to Hans Sloan) and Monmouthshire. Approx 35pp in all, modern paper wrappers. Interior contents generally good