1859.] WEIGHT — INFEKIOK OOLITE. 35 



3. Henbury Quarry, one mile and a half from Yeovil . 



A. Parkinsoni-zonc. it. in. 



a. Rubbly oolitic ragstone, much broken 3 



h. Light- coloured oolitic limestone, containing Am- 

 monites Parkinsoni and Belemnites canalicidatus . . 6 



c. Hard oolitic ragstone, with Belemnites and Pectcns 1 6 



B. Humphricsianus-zonc. 



d. Ammonite-bed, a hard, brown, oolitic limestone, 

 charged with crystallized carbonate of lime, and con- 

 taining many large Ammonites 5 <» 



e. The Shell-bed ; a sandy oolitic limestono composed 

 of soft brown marl, in which are abundantly strewed 

 numerous oolitic grains of the hydrate of iron, and 

 many fossils 4 



/. The '' Dew-bed," a greyish, hard, crystalline lime- 

 stone. 



The fossils in A are not well preserved. The specimens of Am- 

 month s Parhmsoni arc chiefly moulds or impressions. Those of </ arc 

 in good preservation; many large slabs arc raised entirely covered 

 with Ammonites concavus, Sow., which appears to be the dominant 

 shell here. Ammonites Dorse ti mis, Wr., likewise occurs in this bed. 

 The Shell-bed (e) is likewise very neb in Gasteropoda and Conchi- 

 t'ra. I collected Pit nrotomaria actinonvphala, Purpurma ornata, 

 Chemni//,ia Iticarinata, Cueulhra ohlonya, Gervillia Hartmamii, Limn 

 I'jiht ridgii, Modiola reniformis, and Serpula grandis in situ. 



4. Half-way House Quarry, three miles from Yeovil, 



A. l'arkinsoni-zone. It. in. 



a. Coarse, brown, oolitic ragstone 3 ( » 



/>. Several beds <>l' freestone, alternating with bed- of 



mar] ; the former used for building 1" (| 



c. light-coloured oolitic freestone ; building-stone . . 1 6 



B. EumphriesianuB-zone. 



ti . Ammonite-bed, a brown, iron-shot, oolitic limestone, 

 with many large specimens of Ammonites Dorsetensis 1 •'> 



i. Light-coloured marl j Ammonites and Conchiferq .. 5 



/. Brown, coarse, Bhelly, iron-shot oolite, containing a 



considerable number of Conchifera 3 6 



</. The " Dew-bed" ; a hard, grey, crystalline lime- 

 stone, raised tor road-mending, about 2 



The beds of A are nol rossQiferous. The alternate layers of free- 

 stone ami marl represenl the Upper Etagstones and Building-free- 

 stones (No.5 7) of Dundry; they yield, however, a very inferior stone. 

 The beds of B are \>i> fossiliferous ; d has long yielded many targe 

 specimens <>r Ammonites Dorsetensis and Nautilus Kneatus, having 



d 2 



