Yol. 69.] THE PEMBROKESHIRE COALFIELD. 257 



The following section is taken from the ' Summary of Progress ' 

 for 1905, Mem. Geol. Surv. 1906, p. 52, and shows the position of 

 the horizons from which plants were obtained in the sequence 

 along the Tenby and Amroth coast, and also in the central district 

 south-east of Haverfordwest. 



Generalized Section of the Coal Measures of East Pembrokeshire. 

 Thickness in yards feet inches. 

 Measures proved in the Moreton 



upcast shaft ; details unknown ... 58 



a . f Measures with three thin seams 62 



© & 



(Rock Vein of the Timber- Vein Series 3 



Measures 12 



Low Vein 18 



Measures 17 1 4 



Timber Vein 6 



„ _■ /'Measures 7S 2 



SgiRockVein 1 



^ o Measures 28 1 



k° I Garland Vein 1 



%'n { Measures 6 2 3 



S g Fiddler's Vein 6 



z > Measures 7 2 ] 



^ o I Under Garland Vein 14 



m ^Measures 15 7 



-™ /Lower Level Vein 1 8 



^ h | Measures 26 2 5 



5 g ■{ Catshole Vein 8 



§q | Measures 44 



M i^Kilgetty Vein 1 6 



Measures 17 



Lady's Frolic Vein 



Measures 63 



Tin Pits Vein 



Measures 10 



Farewell Rock . 



III. The Fossil Flora. 



So far as I am aware, there are no previous records of fossil 

 plants from the Pembrokeshire Coalfield, with the exception that 

 ■Stigmarice are mentioned by De La Beche 1 as occurring in 

 underclays in the coast-section east of "Wiseman's Bridge, near 

 Saundersfoot. In the same paper 'vertical stems of Calamites* 

 are also stated to have been found at one horizon in the same 

 section. 



Since the coalfield falls naturally into three districts, the beds of 

 which cannot be correlated exactly one with the other, it is best to 

 consider the flora of these areas separately. 



The first district to be dealt with is that which extends roughly 

 from Nolton to Newgale, and stretches inland from St. Bride's 



De La Beche (1846) pp. 162-67. 



