V1" 
INTRODUCTION. 
form a’ kind of Landfcape, making ufe of two or three Sorts E 
of the Ulva*marina, or Sea-Liverwort of different Colours, 
in defigning a Variety. of Hills, Dales, and Rocks, which 
made a proper Ground-work and Keeping for the little 
‘Trees, which the éxpanded Sea-plants and Corallines: not, 
My ingenious and Reverend Friend Doéor Stephen Hales, 
paying me a Vifit, was pleafed to exprefs great Pleafure in 
viewing thefe natural lively Land{capes ; and defired me to — 
unaptly reprefented. Dees 
make fome of the fame Kind for her Royal Highnefs the 
Princefs Dowager of Wales, that the young Princefles might 
amufe themfelves, in difpofing thefe beautiful Produétions in 
the like pi€turefque Manner. And for that Purpofe, further 
requefted me, to colleé all the Varieties our Sea-coafts af- 
forded 5 which I did, by the Help of my worthy Friend 
George Shelvocke Efquire, Secretary to the Poftmafter-general, 
and fome of my Acquaintance in Ireland, - 
I had the Honour, through my Reverend Friend, to pre- 
fent fome Pieces of this Kind to her Royal Highnefs, who 
was pleafed to accept them with her ufual Condefcenfion, 
The great Variety, that came through my Hands, deter- 
mined me to feparate all the different Species, and to difpofe 
them in proper Claffes. To affift me in this Part of my La- 
bour, I had Recourfe to the learned Ray, who, in his Sy- 
nopfis Stirpium Britannicarum, has given the beft Account 
we have yet had of thefe Produétions, as well as of the in- 
digenous Plants of Great Britain and Ireland. | 
In order to diftinguith their proper Charaters with the 
greater Accuracy, I found it neceflary to examine them in 
the Microfcope ; by which I foon difcovered; that they dif- | 
fered not lefs from each other, in refpe& to their Form, than 
they 
