Page:Philosophical Transactions - Volume 004.djvu/124

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sh. d.
Hewing of all sorts of plain pelmell per 1000 1 6.
Pinning per 1000 8d: Pins p 1000: 8d 1 4.
Three bushels (Winchester measure) of good Lime will take 6. bushels of fresh water sand, and serves to lay on one Poole of work; though much less may serve the turn,
300 of lathes to every Poole of work.
1000 of Lath nailes to every 300 of Lathes.
An able workman may lath 1. poole of work by the day.
lay on 2000 or more of slate
hew 1500 plaine
pin 4000

Chequer-work consists in Angles, Circles and semi-circles &c. which requires no common skill, and time in hewing and laying.

It is worthy observation, that if a side-wall happen to take wett by the beating of the weather, or the like, when nothing else will cure it, our kerseing with Slate (which is much used in the curious fronts of houses, especially in Townes) will quickly remedy it.

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.

Sir, I Can deny you nothing, and you may doe what you please with the Notes I send you. You would know of me (you say) what I have observed concerning the Odd Turn of some Shell-snailes with us in England, and the Darting of Spiders.

I will tell you then of the first, that I have found two sorts of them, easily to be distinguisht one from the other, and from all besides, because the Turn of the wreaths is from the right hand to the left, contrary to what may be seen in common Snailes. They are very small, and might therefore well escape thus long the more Curious Naturalists; neither of them much exceeding, at lest in thickness, a large Oat-corne.

The