< 3 *? 
relation to the to, but after finding the Gnats to be multiplied 
and the little watry Animals to be much leffened in quantity 
and finding great numbers of their empty skins floating on the’ 
face of his Dm , He thought, he had juft re-afon to perfwade him - 
felf, the-Gnats were bjaafecond Birth produced of thofe little- 
Animals. 
That vapouring away great quantities of his putrefied Dm 
m Glafs Bafons, and other Earthen glafed VefTeis, He did at 
Lift obtain, as he remembers, abo ve two pound of Grayi/jj Earth 
which when he had waflied with more of the fame Dew out of 
all his Bafons into one, and vapoured to ficcity, lay in leaves 
one above another, not unlike to fome kind of brown Paper 
but very friable. ^ 2 
That taking this Earth out, and after he had well ground it 
on a Marble, and given it a fmartFire, in a coated Retort of 
Glafs, it loon melted and became a Cake in the bottom, when 
it was cold, and looked as if it had been Salt and Brimftone in 
a certain proportion melted together f but, as he remembers, 
WaS not at all inflamable, This ground again on a iMarbie, he 
faith, did turn Spring water of a reddifh purple Colour. 
I hat by often calcining and fikring this Earth, He did at laft 
extratftj about two ounces of a fine fmall white Salt, which, look’d 
on through a good Ehcro fcope, feemed to have Sides and Angles 
in the fame number and figure, as Rochpeeter. 
The Motion of the Second Comet pediQecf 
by the fame Gentleman , who fredi&ed that 
oft he former. 
Monfieur Awyia, the fame Perfou, that not long fince com- 
municated to the World his Epbemendes touching the courfe of 
the former Comet^nd recommended feveral Copies of them to 
the fyyal S-eeiety, to compare their Obfervations with his Ac- 
count, and thereby, either to verifiers Predictions, or to fhew, 
wherein they differ, hath lately fent another Ephemerides c on- 
cerning the Motion of the S eeond Comet, to the fame end ; that 
invited him to fend the other. j n 
