84 



FORAMINIFERA OF THE CRAG. 



Other common species are Textilaria sagittula, Truncatulina lobatula, T. Haidia- 

 gerii, and Botalia Beccarii. On the other hand, Nonionivse are rare and the 

 specimens small. There is also a remarkable absence of Miliolme forms. 



3. Sudboukne Hall. — Zone d. 



I measured the following section in the pit directly in front of the Hall in 

 188G, and it is still (1894) in the same condition. 



Surface soil and drift . . . . . . 1' 6" 



' Fine white Coralline Crag, full of comminuted shells and Bryozoa, rich in 



Scaladise . . . . . . 3' 0" 



Zone d.- Marly Crag, buff-coloured and greenish at the base ; full of fine shells, 

 Cardita senilis, Arctica IsJandica, Cldamys opercularis, Astarte Omalii, 

 &c. . . . . . . 3' 6" 



This pit is referred, somewhat doubtfully, by Prof. Prestwich to the Zone d ; 

 but the Mollusca, especially the band with Arctica islandica, in a greenish to buff- 

 coloured Crag, so distinctive of this zone at Broom Hill, Sutton, and elsewhere, 

 together with the Foraminifera, confirm this view. Some of the latter are here 

 very fine ; specimens of Polymorphina frondiformis 5 mm. long, and of P. 

 comjplanata 4 mm. long, being not uncommon. Polymorphina variata is also 

 plentiful and well grown, together with Textilaria agglutinans (varieties) and T. 

 trochns. 



4. Tattingstone (Park Farm). — Zone d. 



We are indebted to Prof. Prestwich for some material from the outlier of 

 Coralline Crag which occurs at this locality, four and a half miles south-south- 

 west of Ipswich. The section is now much obscured and overgrown ; but 

 originally about eight feet of Coralline Crag was exposed, underlying Red 

 Crag, in the following section i 1 



1. Coarse gravel. Drift. 



[2. Ochreous sand, with seams of ironstone, &c. 



3. Crag with a few coprolites 



4. Light-coloured sand . 



5. White sand . 

 (>. Brown loam 

 7. Xnt described 

 S. Coralline Crag . . . . . . 8' 0" 



The Coralline Crag of this section is referred, with doubt, by Prof. Prestwich 

 to his zone d; but an examination of the Foraminifera shows a somewhat 



1 Prof. Prestwich. 'Quart. Journ. Geo!. Soc.,' vol. xxvii, 1871, p. 342. See also, for other 

 ma at Tat i , " Geology of Ipswich," &c, ' Mem. Geol. Surv.,' 1885, pp. 2G and 47. 



Red Craj 



12' 0" 



