14 



Bight hand figure cylindrical* hollow* very straight and dia- 

 phanous* its outside smooth* inside crystallized in somewhat 

 irregular spiculated rhombic forms. I was favoured with 

 this very curious specimen from Stonesfield quarry in 

 Oxfordshire* by Dr. Williams the botanical professor. 



The brownish quill-formed stalactite* as the fistulose ones 

 are often called* are common in many places. The darker 

 sorts* somewhat resembling the middle one* are often found 

 of various forms and dimensions. These dark ones may be 

 coloured by clay. Kir. v. I. 87. 



The lower middle figure is mostly found of an opaque and 

 chalky appearance in wet cellars on the roofs and walls. 

 Lady Wilson finds them continually forming in a drain at 

 Charlton house. The Rev. Mr. C. Sutton and the Rev. Mr. 

 W. Kirby have favoured me with specimens found by them 

 at Richmond and Kew. They occasionally occur in cellars in 

 London* &c. 



