186 



Mr. S. V. Wood on the Red Crag 



into two structural parts. These parts are respectively Crag pos- 

 sessing none of the characters of a deposit formed under water, 

 and Crag with the usual characters of a water-deposit. There are 

 to be observed in one pit at Hollesley (see woodcut infra) four 



Pit near Hollesley. 



North end of pit, looking N.W., fourth and fifth stages. 

 [This section is in its tme vertical position 

 relatively to the section below.] 



South end of pit, looking N.E. Three Beach stages. 



distinct stages of the first-mentioned Crag, one over the other, 

 covered partially by the Crag with the character of a water- 

 deposit ; and in consequence of that quintuple exposure, I shall, 

 for convenience, distinguish the one division as the beach stages 

 of Crag, and the other as the fifth or horizontal Crag. 



Of these beach Crags the three inferior stages are not alto- 

 gether constant in their direction, although, where exposed, they 

 have for the most part a distinguishable uniformity of direction 

 in the inclination of their planes of stratification. There is only 

 one other section (that at Brockstead in Sutton) where so many 

 successive beach-stages are exposed. The less frequent exposure 

 of the more inferior stages, or at least of the two lowest, and 

 the extent to which they have sufiered from the denudation 

 consequent upon the formation of each succeeding stage, render 

 it difiicult satisfactorily to divide any of them, except the upper- 

 most, into stages capable of identification with each other at 

 every exposure. This, however, is not the case with the fourth 

 or uppermost of the beach stages. From the great thickness 

 often exhibited by this stage, and from the more partial denuda- 

 tion by a succeeding stage to which it has been subjected, this 

 fourth-stage Crag presents the means of accurate identification ^ 



