Letter, 'Of spiders and snails' from Mr Skippon to John Ray Skippon describes the appearances of two types of snail he has seen in England. He goes on to discuss spiders, and spider silk in particular. Subject: Zoology / Arachnology / Malacology Published in Philosophical Transactions as 'Some observations concerning the odd turn of some shell-snailes, and the darting of spiders, made by an ingenious cantabrigian and by way of letter communicated to Mr. I. Wray, who transmitted them to the publisher for the R. S.', vol 4, no 50, p 1011 Read to the Royal Society on 18 February 1668 February 1668