(715) 
a®. That the Ferjidf$s arcexqu\rite\y skilArl In damaskining 
with Vitriol $ but that the nature of the Steel by them ufed con^ 
tributes very much to the good workmanfliip, they noc being 
able i:o do fo well with theirownor our Steel. This Steel they 
fetch from GoUcnda, which is the only kind kuown that can be 
well damaskined. And 'cis very differing from ours : For,when 
'tis put to the fire to temper ir, they very carefully give it only 
a little rednefs like that of a cherry- colour , and inftead of 
quenching it in water, as we do,they only wrap it in a wet piece 
of Linnen cloth ; for, if they fhould give it the fame degree of 
heat that we do taours, it would grow as brittle as glafs* 
21. That the P^r^/^ Counrrymen about Ifpahan , coming 
every morning to fetch away all manner of the ordures of the 
Town to dung their land withaJ^take upmiich rather the excre- 
ments of the jirmenuns^ JewzxA Frafi^s^ becaufe tJiey ddnk 
wine, than thofe of the Prr/4»i, that geoeraiiy drink no , 
22. That in Ferjathcy make the running of Fool men a 
Trade>,by breeding them up t© it, and with foienmry receiviiig 
him for Matter of the Trade wtoo performs the Mafter- piece of 
running 36 common Leagues in a day, from Sun-rifing r,o Suh- 
fetting. 
So far the Ohfervations of the firft "^oXuxn^ithofe of the fecoiid 
we fhall refervefor the next ofprtunitf. 
j{Defcription of Mr, John Coniers, apothecary am Citiz^en^ 
hu Hygrofcope, in tm fever al Contrivances ; together 
with fomeObfervations made thereon : Communicated in a. 
Letter to the PM&er,0€toh.i3. 1 676, 
SIR, 
I Thought it neceflary to acquaint you, that in my dlverfion?^ 
among many (at leaft 40J feveral Trials, made by me for the 
readied and beft difcovery of the Change or Temperature of 
the Air and Weather,! have found out,thar by applying a Hand 
and a Circular Index or a Qiiarter- circle to a Pannel made of 
duly feafoned Deal-wood, and that divided or flit in two parts 
playing loofe in a groove, and only faftned to the frcfoie at each 
end (as you may fee by the figures, accompanying thefe lines,) 
you have one of the beft, if noc the very beft contrivance for 
thatpurpofe. I have made two feveral Contrivances of it 5 
the one I invented and contrived about five or fix years fince 3 
here explained in the firfl: Figure^ together with fome Obferva- 
tionSj^. 
