290 REPORTS ON THE STATE OF SCIENCE. 



6. That areas of Wenlock occur in regions formerly mapped as 

 Llandovery to the west of Charfield Green, between Tortworth and 

 Daniel's Wood, and in the neighbourhood of Stone. 



7. That, although certain fossils of Ludlow type have been met with 

 near Horseshoe Farm and to the south of Little Daniel's Wood, only a 

 very thin, imperfect, and non-typical development of these rocks exists ; 

 and this fact, taken in connection with the remarkable attenuation of 

 the Old Red sandstone, renders it probable that the district was <ip- 

 heaved and subjected to erosion in late Silurian and early Old Red 

 sandstone times. 



The paper by Mr. F. R. Cowper Reed and the Secretary describes 

 only the fossiliferous Silurian rocks, the igneous rocks having been 

 already described in a paper by Professor Lloyd Morgan and the Secre- 

 tary, published in 1901 ; ^ but in the course of the work a certain amount 

 of additional information was obtained with regard to the ' trap ' rocks, 

 which may be given here. In the first place a considerable number of 

 new exposures has been obtained, especially between Middlemill and 

 Woodford. The great majority are not inconsistent with the view main- 

 tained by Professor C. Lloyd Morgan and the Secretary in the paper 

 above referred to, that both the upper and lower trap bands are regularly 

 interbedded with the sedimentary rocks. The forking of the trap to the 

 west of Woodford Green does not present any difficulty to the contem- 

 poraneous hypothesis, being explicable on the view that the trap is folded 

 into a syncline, and the isolated patch at Woodford Farm may be 

 regarded as brought in by a roll in the strata. There is, however, one 

 small patch of trap which it has been found very difficult to connect 

 with such a scheme : it lies to the west of the northern end of Daniel's 

 Wood, in an area which, as far as the very limited amount of evidence 

 available goes, is Wenlock. We are inclined to think that this reopens 

 the question as to whether or not some of the trap may be intrusive, and 

 it must be admitted that there are certain facts, such as the strong 

 divergence of the two trap bands to the west of Damery and the en- 

 closure in parts of the Damery trap of much sedimentary matter, which 

 are best explained on the view that the lower trap band is intrusive. 

 The field evidence is, however, scarcely sufficient to warrant at present 

 a definite opinion. The chief points brought out by examination of rock 

 sections cut from new exposures are : — 



1. The prevalence of andesitic rocks containing bastite pseudomorphs 

 after enstatite. These have already been recorded from Charfield Green, 

 Woodford Green, and Daniel's Wood, and we have now met with them 

 to the W. of the Fox Inn at Woodford and in trenches to the S.E. of 

 Crockley's Farm, Tortworth. 



2. The frequent occurrence of quartz xenocrysts with corroded 

 borders. These were recorded in the paper previously referred to from 

 Warner's Court, Charfield Green, Daniel's Wood, Woodford Green, and 

 Middlemill ; but, except perhaps at Daniel's Wood, they are best seen 

 in the old quarry W. of the Fox Inn at Woodford, an exposure not 

 recorded in the previous paper. All these localities probably lie on the 

 upper trap band. 



3. It is perhaps worth noting that the pyroxene andesite exposed in 



' Q.J.O.S.,\o\. Iviii. 1901, pp. 267-284. 



