Figure i. Sketch of a section of part of the secondary vein 

 illustrated on plate 30. This shows the filling of the vein by solid 

 calcite-carrying fragments which are parts of the crystalline wall 

 of an earlier vein of the same series, and also a fragment of the 

 red lime-sand filling of which this secondary vein is now largely 

 composed. 



Figure 2. A similar section of the secondary series of veins in 

 which the entire vein-space is filled, with the exception of the 

 crystalline wall lining, with red lime-sand derived by influx into the 

 fissure from above. 



Figure 3. A fragment of the limestone showing a major vein at 

 the bottom and the series of torsion veinlets departing therefrom. 



[244] 



