(r) 
one Invention, I fhoufd have barred my 
felf from finding out others. Not know¬ 
ing therefore, what other Experiments' 
and Studies may abide me elfe-where, I 
thought I might do welljhere to deliver 
thofe things touching Solids mturdlj in¬ 
cluded foithin Solids^ which might be a 
pledge of my grateful difpofition for be- 
nefits and favours received, and which ah 
fo might afford occafion to others,that 
enjoy leifure, to improve the Study of 
Natural Philofophy, and of Geography, 
with more advantage. 
Concerning then the Froduclion of So¬ 
lids naturailj inch fed within Solids-, I fhall 
J’ir/?,fhortIy delineate the Method of my 
Diifertation 5 and next faccindly dif- 
courfe of, the more uncommon things, 
which occur upon that Subje(5i:. 
The Diflertation it felf 1 had divided 
into Parts 5 The firft of which be¬ 
ing a kind oilmYoduBion^ flievveth, that 
the about Bodies,found 
at a great diftance from the Sea, is anci» 
ent, delightful, and of ufe 5 but that the' 
true Solution of it,whichin fofmertimes 
was lefs doubtful,hath in the later times 
been m.ade much more uncertain. And 
. B 4 having 
