i( i% 7 ) ) 
was fomewhat lefs than the Glafs ; fo that by inverting 
the Glafs, it came out eafily, and had apefiftied Sur- 
face almoft asTmooth as the Glafs in which it was caff. 
The large Cone of Sulphur, Numb. 19, was made 
after the fame manner ; by being caff: in a large 
Drinking-Glaf?. 
I am now to give an Account of the Gbfervations 
made on the feveral Bodies mentioned in the Catalogue, 
but muff firft give a Defcriptioii of the Catalogue. 
The firft Column contains the Number, which in a 
final 1 Piece' of Paper is fixed on each of the feveral 
Bodies"} the Name of which is given in the fecond 
Column, whether they 'are fitigle or compound Sub- 
ftance9. The third Column Ihews of what Weight 
they were of when , melted, in Ounces and Drachms 
of Avzrdupols Weight. In the fourth Column you 
have the Days of- the Motith when the: Body was 
melted and received its Form, and confequently when 
it firft began to attrad." ,n 
I did for thirty Days continue toobferve everyone 
of thefe Bodies, and found that at the End of thefaid 
Time they attracted asvigoroufly as at the firft or fecond 
Day, as they do now at the writing hereof. By the 
Times mentioned in the Catalogue, being: fubftraded 
from anyTime after, w ill befheWrthoW long any of the 
Bodies have continued their AttraftiveVertue } by which 
it will appear, that fomeof them have not loft their At- 
traction for more than four Months: So that we have 
feme Reafon to believe, that we have now difcovered 
that there is a perpetual attractive P(Swer''m allElbc- 
trick Bodies, without exciting' by either - rubbing, 
beating, &rY. or any other Attrition. But this will fur- 
ther appear by the Account l am now to give of the two 
Pp j laft 
