of Keratophyta. 67 



extend themfelves 1 6 Feet in Length ; whereas, I believe, 

 no-body has yet feen the leaft Tendency to Frudtification in 

 thefe Bodies, unlefs what appears in the cellular cortical Part 

 fhould by any be deemed fo ; notwithftanding Obfervation, 

 and many Experiments, fhew us plainly that this has much 

 greater Affinity to the Work of Animals. 



Laftly, The chemical Experiments, that have been made 

 on thefe Bodies, are a ftrong Proof, if there were no other 

 Demonftrations, of their being animal. 



I need not mention any other to the curious, than the great 

 Quantity of volatile Salts, that may be extracted from them, 

 and the ftrong Smell they yield, when burnt, of roafted 

 Oyfters. 



We have as yet met with but two kinds of Keratophyta on 

 thefe Coafts, and even thefe are rare. The firft is ; 



N®. I. Keratophyton JiabeUlforme-, cortice vermcofo d?^(5^//t-PiateXxviL 



Rc\ Fig. a, 



. 0. pag. 32. ^ 



Warted Sea-fan. 



This was found on the Coaft of Cornwall. The Outfide 

 of it is covered over with a Cruft, full of little Lumps like 

 Warts ; which, when diffolved in Vinegar, difcover the con- 

 traded Bodies of Polypes, with eight Claws. 



Fig. /J, N®. I. reprefents a fmall Sprig of this Keratophyto7i. 



Fig. A^ and ^ r, are two Views of one of the Warts 

 magnified. 



Fig. yf 2, is the Appearance which the Polype made, 

 when the cretaceous Matter was diffolved. 



Fig. ^3, reprefents the Particles magnified, thatcompofe 

 the Incruftation. 



K 2 N°. 2. 



