XXviil. THE FIRST WINTER MEETING. 



The Club were much interested in the freaks of limestone as 

 expressed in the remarkable series of pseudo-organic or dis-coid 

 concretions, none of which are organic, although they simulate 

 organisms so closely. The same curious and mysterious process 

 is illustrated in ring coal, the weathering of old mortar, and the 

 banding of flints. 



Mr. HUDLESTON, who had met Dr. Abbott before at the 

 Geological Society, drew special attention to the circumstance 

 that although the peculiar bodies exhibited on this occasion 

 occurred in the Magnesian Limestone, yet that they consisted in 

 their present state almost entirely of carbonate of lime. To the 

 decomposition of the double carbonate (dolomite) must be 

 partly ascribed the concretionary action which had been set up. 

 The difficulty had always been to know what had become of the 

 Magnesia in the original rock, and he suggested its having been 

 removed in the form of the very soluble sulphate known as 

 Epsom Salts, whilst the residual lime carbonate, being released 

 from its primary combinations, proceeded to assume new forms. 



BY E. CUNNINGTON, ESQ. : 



An interesting specimen of old oak carving. 



The Kev. W. MILES BARNES pronounced this to be a subsellium from a choir 

 stall of some church. 



BY E. SLATER, ESQ., F.G.S. : 



A fine specimen of a fossil turtle (rictirosternon concinmtni). 



Found in the Middle Purbecks at Herston, Swanage. He bought it of a 

 quarryman and presented it to the Museum. 



The PRESIDENT said that these turtles were getting very rare. This one was 

 a handsome present to the Dorset Museum, which even before its acquisition 

 contained the best series of fossil turtles outside the British Museum. 



Mr. HTTDLESTON observed that Swanage was famous for its turtles and 

 crocodiles, and this was an extremely interesting specimen of the former. 



BY L. B. CLARENCE, ESQ. : 



A box- wood implement, found about a year ago under the roof of Coaxden, 

 Chardstock. The initials upon it are those of one of the Cogans, a family of 

 small farmers in the neighbourhood, probably a son of R. Cogan, who was 

 manager of the small Coaxden Estate for its owner. Sir Simonds D'Ewes, at one 

 time. About the time of Sir S. D'Ewes' death, or soon afterwards, the Cogaus 

 acquired Coaxden by purchase. 



