Articulated ConaLuines. te 
Cl ae on Mee of the articulated Corallines of 
Jamaica : 
Thefe are introduced here, to fhew the Shation of Na- hss AS 
ture in the warmer Climates ; and to {et before us in a clearer 
Light, the curious Conftruétion of the Corallines of our own. 
Our articulated Corallines, as was obferved before, are fo 
denfe, except the firft, and their Surfaces fo fmooth, that 
the Microfcope can but juft difcover to us their Pores. The 
Weft-Indian Corallines are generally of a loofer Texture: The 
naked Eye can eafily difcern the Pore-like Cells all over the 
Surface; and at the fame time very pinky eo the 
Tubes that connect the Joints. 
When the cretaceous Matter is aiffolved in esac) 8 we 
may obferve, with the Microfcope, the Hinge-like Tubes 
continued in Ramiifications, that expand themfelves over the 
flat Superficies of each Joint, and end in little Cups, that 
are united at the Sides, fo as to form a Surface like an Ho- 
neycomb: Each minute Cup has a fmall Hole at the Bottom, 
- by which it communicates with a particular little Tube ae 7 
one of the leffer Branches; and the Top of each a cor~ 
tefponds with a Pore on the cretaceous Surface. 
Fig. @ and 4, Plate XXV. thew two Bee ‘of thefe 
Corallines i in tie natural Size. | 
a 
Fig. 4, thews the Pores of one of the Joints of Hig a 
magnified. 7 | E 
| ‘Big. 4. x, thews the regular Ramifiertions Pie in re a 
| Surfaces of little ecencaen Cups, joined together like Ho- can 
4 -neycomb, after the cretaceous Matter of the » Joint, ar Bie. Ae 
Pes staken oft by the Vinegar. 
Fig, 
