their wales^to render them wbtcer theo ordinary 5 which it doth 
evep whiter than lirae^ Such wales cooierfe t^eir fahneis focQe 
fewdaiesbnly^and thenbeGot^eitoGpidvevcia thotrgh thHy , jf#et 
forth a white excrefcence in chin and lighr flakes iike oiter^nia* 
iiy years after. But that Salt^ which is collefted trom the ftones^ 
gravel and earth 3 by which the rivc^^csj defcendiog^^fr^ thoft 
' Baths, do run^ is without any taft ofSalfs though there be no 
diffirence 'fn^he form or colour from that which is gather'd 
with the wooden inftruments^by me mentioned* This is the Sum 
^cf what I have to fay at prefent of this particiilar. If you thiiifc 
the matter tantij will fend you a more aaiple dekription there' 
of, with my tht)U^t?s iipon it* 
RefieHionsmadebyP.Ffmcllco'Lma S.J, upon an Ohferyationof 
Sionor M. Antonio Caftagnaj^S'a^/^^r intendent of fome mtms in L 
taly^ comerningthe fofmatimQf Cryjlds : EngU^^^ 
Venetian Giornale de Letterati* 
IN the laft mQniYioiSeptemheY^ being arrived in the Val Sahbia 
into a place call'd le Mei^ne^ where I knew that thofe Cry- 
ftals afre generated,! obferv'd in a fpacious round of a Meddovr, 
featedon ahillockj feme narrow places bare of all herbs^ in 
which alonC) and no where elfe thereabout, thofe Cryflals are 
produced-, being all fex-- angular , both points of them terminal 
ting in a pyramidal figure , fex-angular likewife^ 
I was told, that they were produced from the dews, becaufe 
f forfooth 1 ) being gatherM over night^the next morning there 
would be found others at fuch a time only 5 when it was a fe- 
rene ahddewy:siy;ahd that u|)o of the meddow^and 
without the bounds of thofe bare and fterile places never any 
Cryftals were" to be found i befidesj that the ground haviog ' 
'been in fome places bated of al! greens- , and reduced to the 
co-ndition of thofe other naked places^ yet' iio cryftals.were ever 
^ feeo to have been formed there. Bat I/.when lhad examined , 
thafM^he neiahbour-BSodof that hiil there was no'mafkatalt 
of aiiyMioeS) did cbhdade^thatic mig aplenty of nitrons 
fteames, which might wirha! hinder vegetation in thofe places^ 
^Mnd^doaMilate the Dew falling thereon* And that thofe exhala- 
tians were rather Nitrous 3 than of an othfer kind, I was induced 
'to believe, becaufe-'Nicer is not onlf the natural of 'wa-- 
tcr 
