C ^'29 ) 
from th^ Salt that is diffblved in it ^ which Saltnefi be takes to ^ 
be fjpplicd not only from Rocks and other Mafles of Salt 
found either at the bottom or at the fides of the Sea^ but alfo 
from Subterraneal Steams and from the Salt, which the rains, 
rivers aod other waters diffblve in their paffage through di- 
vers parts of the Earth, andfo carry along with them into the 
Se3. Here betakes occafioo to fpeak ofhis attempt of diftil* 
liog fweet water from Sea -water , which done,he/rff removes 
focpe Objcaions^ ^^x/jCODfiders of the Caufeofthe bitteraefi 
Joined to the Saltnefs of the Sea-watery ^^^^^takes notice not 
only of the differing Colors and other Qualities of the difFe- 
ring parts of the Sea, arguing^ that 'tis not every where of au 
Uniform fubfJancc ; but alfo of the Sea^waters capablcnefi of 
Purefadion To all which he fubjoios divers Obfervatioos 
about the variouti Degrees of the Saltncfs of the Sea, and what 
himfelf obfervedand tried concerning the Saltnefs ofour Sea 
and the Gr/it^i/y of the Sea- water between Englafsd mA trance'-^ 
concluding this whole Difcourfe with two /iifpicioiis 5 the 
onty thatjat leaftj in many places^ the Saltnefs of the Sea may 
continually jthough but flowlyjincreafe not only bythe acceif 
fion of that Saline matter,that is imported by Salt-fprings, and 
that which Rivers and Land floods do rob the Earth of 5 but 
alfoby the Salioe (teams plentifully alcendiog into the Sea 
from Subtcrraneal Fires : the other ^%x. Sea-water may be r^a- 
der'd much more fait to the tafte by volatil SaltSj and yet be 
very little heavier* 
Upon this argument follows zSeBion^h^t (hould have been 
fubjoined to the Relations about the Bottom of the Sea^fovmcrly 
printedjbut was not then feafonablydeiivefd to the Printer 5 
And therein is contained an Inquiry about the Vegetation and 
Growth of Plants 10 fub-marine Regions^ where occur fome 
Obfcrvations,made chiefly of that Stony plantjCe^r^/Zj as alfo a 
fort of Laurcl-trecs growing about i^/<^i?^r at the bottom of the 
Sea 5 and the kmous Ma Idivi a Nut ^ born by a fort of Goco- 
trees that grow folikewife, and are thence cither torn off by 
she agitation of the water^or gathered by tb^e Divers. 
After this follows a Paradox of the Natural andPreternafural 
State of Bodies. /ffecially of the y|/>. Wherein the Author teaches^ 
that as a Body^whatevcr ftace it be put into or kept in^ obtaio- 
