Natural Hiftory 



and calcarious Matter. At the darl^ Part near Z), the cal- 

 carious Tubes are taken off, on purpofe to fliew that the 

 horny Parts underneath, which ftill have the Appearance of 

 Tubes, have taken the fame Courfe and Diredlion with the 

 calcarious ones, that fucceeded and covered them. After 

 this they made a fhort Turn, to gain the broken End of the 

 upper Part of the Stem of this Branch ; and from thence 

 they continued their Progrefs along it towards the finer Ra- 

 mifications, as ufual. 



Fig. £, reprefents two calcarious Tubes magnified : Thefe 

 were cut off from the cortical Part of the Trunk, near Fig. L, 

 The component Parts of the calcarious Matter are fo mag- 

 nified, that the particular Shape of them may be diftinguidi- 

 ,ed, which is not unlike that of the red Coral. 



Fig. F and 7, reprefent a fmall Sprig magnified, that was 

 taken from the Top of this Keratophyton^ at Fig. 0. 



Fig. G, is a fmall Ramification of this Sprig, with the 

 calcarious Surface thinly taken off, to difcover the three 

 Tubts, that run juft under the Surface ; the two Side ones ap- 

 pear to have fmall Holes in them, as if the Animals commu- 

 nicated with the 2 Rows of Cells on the Sides. By cutting 

 another very thin Slice, we difcover both the horny Tube in 

 the Middle, and the two Rows of Cells ; which are both ex- 

 preffcd on the opponte Ramification, at Fig. H. 



In each of thefe Cells we plainly difcover a fmall Polype, 

 of the Size of the Figures at N^ and of the fame Shape with 

 the magnified Figures at M. This Specimen was lately 

 brought from the Weji-hidies ; the Animals were very diftin- 

 guiQiable, but contracted : The dark Holes on the Sides of 

 the Stem, and lower Branch of this magnified Sprig, F and 



