( 4^^9 ) 
ter,as is manifeft in artificial glaciadoDS|but alio k ever retains 
the above /aid fex^angular figure^ altogether like that of thofe 
Gryttals. Which may alfo be the very caufe of thefex-angular 
figure in Snow 5 this being nothing elfe but water concreted by 
its natural coagulum^which is a nitrous exhalation^ And to make 
ityet moremanifeftj that thefe are indeed expirations of niter^^ 
I digg'd up fome of the earth^and drew a Salt from it^which had 
both thetaft and figure oflSTiter; though lome grains of it were 
of afquare, others of a pyramidal^ figure. 
It therefore ought not to be affirm'djthat a dewy vapour k 
of it felf able to be form'd into a folid gem, becaufe,if that were 
fo, fuch vapours being eafily carried by any motion of the Ait 
from thofe narrow places^and falhng down in dew far from the 
fame^Cryftals wouid be formed in thofe other places; but the^ 
are only form'd there: Whence we may very probably inferr^ 
that thence are raifed the exhalations 5 which do concrete the 
deWj aft^r fuch a manner as tha vapour or exhalation of Lead 
coagulates Qaickfilver. 
AMelation of anlnland-Sm^near Dmzlck^ jeildwg at a certam fea'- 
Jon of the year a green [ubjiamej which caufeth certain death 5 toge^ 
ther rviih an Obfervatien about white Amber: Communicated by 
Mr, ¥^\xW^j, in a LetUr written to the Fublijb^^ from Daiizick 
Dccemb. 1 941671« 
N'Ear a fmall village, call'd Tuc'k^m^ t-^ Gtxxm.n miles diftant 
from this Citty weft-ward, there is an Inland^Sea ( made^ 
by the meeting of thr^e rivolets^fome fprfngs from theadjoyn- 
ing hillocksjaod the defcending rain aod inoiv-water^^of aboiiC 
half aGerman mile long and an eight part of fuch a mile broad. 
Itftretches NNW and S «SW. About the midle of the bow on 
the Eaft-fide it difchargeth it felf with a pretty ftream ^.as k alfo 
doth in another place more Southerly, The foil of the ground 
round about feems to be (and mixt with clay* Its flioregene'* 
rally fandyjas is its bottom alfo. Its depths where deepeft, four 
fatboms^but for the moft part but one , or one fathom and an 
half. 'Tis ftored with wholefome and delicate Filh 5 as Pearch^ 
Roch , Eles , &c. and famed for a fmail fifli ^ much efteem-d 
^ berej and not much unlike a Pcarch \ only not fo party coiou* 
red 
