VOL. XVII. (i) INFERIOR OOLITE— SOUTH COTTESWOLDS 



99 



Between the Marlstone, upon which Hawkesbury Church 

 is situated, and the Fullers' Earth is about 262 feet 6 inches of 

 deposit. Of this, about 12 feet is Upper-Lias clay ; 180 feet 

 Cotteswold Sands ; and about 60 feet Inferior OoHte. 



A certain portion of the Cephalopod-Bed, with the 

 Scissum-Beds above, is to be seen in an opening on the left- 

 hand side of the road just before arriving at the main quarry. 

 In the main quarry about 27 feet of Freestone — over twice as 

 much as at Horton — are present. Upon the Freestone 

 rest non-sequentially the Ragstones, but they are difficult of 

 access here, and are best investigated in some quarries to 

 be noticed shortly (" Hawkesbury-Monument Quarry"). 



A spring, also by the road-side, denotes the presence 

 of the Fullers' Earth, which is here full of specimens of Ostrea 

 acuminata, Sowerby. 



The following is the sequence at Hawkesbury : 



Inferior 

 Oolite 



Upper 

 Lias 



Sequence at Hawkesbury 



Thickness in feet inches 



Fullers' Earth i. Grey and yellow clay with 

 some argillaceous lime- 

 stone-beds, full of Ostrea 

 acuminata, Sowerby 

 II. \Vhite Oolite. 2. Limestone, white, oolitic : 



about . . . . . . 104 



III. Clypeus-Grit. 3. Limestone, rubbly in places 9 6 

 N on- sequence. Upper Coral-Bed and Dundry 

 Freestone absent. 

 VI. Upper Trigonia- 4. Ragstone, very shelly : 



Grit usual fossils . . . . 4 10 



Non-sequence. Beds VII-XXIII {inclusive) absent 



XXVI. 



XXV. 

 XXVI. 



Lower 5 Limestones, massive-bed- 

 Limestone to ded ; Amusium personatum 

 9 1 [Gap : probably similar beds, 

 ' for say 

 Scissitm-^eds 10 14. Limestones, somewhat 



sandy 

 Opaliniforme- 15. Limestone, pale - brown. 



20 



4 



6 10] 



7 4 



Bed 



f Cephalopod-Bed 



-{ Cotteswold Sands 



l^L^pper-Lias Clay 

 Marlstone 



somewhat sandy ; Volsella 

 sowerhyana [d' Orh.), Mont - 

 livaltia 

 16-24. Impure ironshot limestones 

 and marls . . 



25. Sands, fine-grained, pale- 



yellow, micaceous 



26. Clay, blue : about . . 



27. " Rock-Bed." 



9 

 180 



By the side of the road to Wickwar, below Hawkesbury 

 Monument, the Top-Beds of the Oolite are very well displayed 



