3S2 



Rev. W. B. Clarke on the Geological Structure 



No. 87. — Well at Wherstead, 2^ miles 

 S.S.W. from Ipswich. 



1 . Diluvial gravel. 



2. clay. . 



3. Crag 



40 



Total.. 49 



No. 88. — Well at Ipswich, on high 

 ground. 



1. Loam 



2. Gravel 



Feet. 

 3 



49 



Total.. 5 2 



No. 89. — Brick-pits at St. Helen's, half way up to the Barrack Ground. 



Feet. 



1. Earth 7 



2. London clay — red loam 8 



3. red clay, with streaks of sulphur 7 



4. blue clay, with pyrites, sharks' teeth, and spots of yellow matter. . 20 



5. reddish clay, with rock 7 



6. Plastic clay — marl with white covering 2 



7. sand, white with green particles 25 



8. hard clay 



Total. . 76 



Beds nearly horizontal or slightly inclined to S. by E. 

 No. 90.— Cliff at Bishop's Hill. 



Feet. 



1 . Crag variable 



2. London clay, brown growing blue, with layers of cement stone. . 70 



Total.. 70 

 The beds dip from the chalk at Bramford to S.E. The Gipping at 

 Bramford is 15 feet above the Orwell estuary. 



No. 91. — Well at Rushmere, 2 miles I No. 92. — Pit on Rushmere Heath. 



E. by N. from Ipswich. 



Feet. 

 14 



1 . Loam (Diluvial) 



2. Crag sand 52 



Total.. 66 



1 . Crag sand 4 



2. London clay 16 



Total.. 20 



No. 93. — Well in the Barrack Ground 

 Woodbridge. 



Feet. 

 Diluvium and crag — gravel and sand .... 77 



(Water.) 



No. 94, — Well at the entrance to the 

 town . 



1 . Diluvial loamy soil , 



2. Crag sand 



Feet. 



30 



20 



Total.. 50 



