“a Natural Hiftory. | 
thefe Leaves proceed other ftill fmaller foliaceous Ramifica- 
tions, many of which feem to be connected at the lower Part 
by Tubuli, as in the Corallines; by which Means they can 
ply to and fro more freely in the Water. 
Fig. a, N°. 1. gives the natural Appearance of this Co- 
ralline. . ae | ; as ish 
Fig. 4, reprefents two Leaves, with their Zabulj and Cells 
magnified. Wade 2 
Fig. B, is a crofs Section of one of the Leaves at 4% fhew- 
ing the Partition, and inner Form of the Cells. 
Plate xxIxX.N°, 2. Efchara foliacea, Millepora, fpongiofa, cellulis ar- 
“8&4 cuatis alternis utringue infirudta. 
_ Fucus telam lineam, fericeamve, textura fua ceuulans. 
De 6 AUR, Oe INGRO.( Pipaee t 
shioy Broad-leaved Hornwrack.. 
This Coralline, when frefh taken out of the Sea, is of a 
fpongy foft Texture, and {mells very fifhy; but when it has — 
Juin for fome time on the Shore, it becomes ftiffand horny, 
like fome Sort of withered Leaves. Both Surfaces, when ex- 
amined by Glafles, appear to be covered with Cells; and, 
when a Piece of it is cut acrofs, one may difcover the thin 
_ Membrane that ferves as a Bafe to the Cells of each Surface. 
The Form of the Cells is very remarkable, each one being 
arched at the Top, and contracted a little at the lower Part 
of the Sides, te,.make Way for the Arches of the two next 
adjoining Cells, fo that, by this particular Conftru@ion, no 
Room is loft. The Entrance of the Cells is immediatel 
under the Arch of each Cell, and the Walls of the Cells 
feem to be fortified with Spines. 
| The 
