1867.] 



TIMINS MALYEKN HILLS. 



353 



tion of other rocks, and the nature of the metamorphic influences to 

 which they have been subsequently exposed, I hope to investigate in 

 another paper. 



I. Lava and Volcanic Ash overflowing, or interstratified with, the 

 BlacTc Shale. Holl, op. cit. pp. 90, 91 ; Professor Phillips, 

 Mem. Geol. Survey, vol. ii. pt. 1. pp. 55, 56, " Interposed 

 Traps." 



I have already shown the composition of many of these rocks* ; 

 it is therefore only necessary to notice a few which I have since 

 analyzed, with some calcareous rock possessing similar characters, 

 from the Herefordshire Beacon. 





m 



'a 



6" 



Oxide of 

 Copperf. 



i 



«M It" 

 O ^ 



a 



•i 



|-a 





I. 



II. 



III. 



IV. a. 



b. 



a 



V. 



VI. 



VII. 



VIII. 



IX. 



X. 



XI. a. 

 b. 



c. 



XII. 



XIII. 

 XIV. 

 B.a. 



b. 



a 



XV. a. 

 b. 

 C. 



44-65 

 47-14 



41-85 



■4r-79 

 51-63 

 45-22 

 43-99 

 43-22 

 44-17 

 45-75 

 48-00 



19-29 

 21-46 

 17-80 



2-89 

 19-61 

 24-24 

 14-98 

 18-72 

 17-56 

 17-97 

 17-91 

 21-99 



3-50 

 15-25 

 22-70 



15-84 



21-84 

 18-49 

 2-32 

 16-36 

 21-39 

 2( 

 15-85 

 22-05 



1018 



11-37 



11-14 



0-37 



8-46 



10-45 



11-88 



11-39 



11-58 



14-28 



11-34 



13-24 



0-67 



8-70 



12-95 



11-93 



5-90 

 14-40 



1-51 

 12-43 

 16-26 

 36 



6-09 



8-48 







4-28 

 3-82 

 8-17 

 6-26 

 1-82 

 2-24 

 6-73 

 505 

 6-14 

 1-92 

 2-05 

 1-65 

 16-31 

 1-25 

 1-86 



13-62 



1-75 



9-96 

 9-59 

 2-41 

 3-11 

 11-30 

 1-65 

 2-30 



9-93 

 4-60 

 5-56 



0-951 

 3-33/ 

 4-11 

 8-81 

 11-16 

 8-29 

 7-57 

 901 

 2-41 

 0-241 



1-68 r 



2-51 



4-54 1 



1-74 

 4-40 



3-47; 

 4-54 



*2-26] 

 314 



5-80 

 5-31 

 7-45 



5-87 

 6-30 

 803 



















14-DZ 1 









7-33 

 5-38 

 3-61 



7-39 

 7-55 

 7-18 

 4-37 



0-80 





6-20 



6-08 

 5-82 

 6-04 

 5-96 

 8-34 











0-50 



0-58 



022 







35-16 



52-35 



35-12 



56-12 

 42-42 







n-z^ 1 









7-63 



5-56 



7-42 

 3-31 





0-54 

 0-20 



CO29-11 



HO 3-74 

 4-65 

 7-02 



0-38 







38-17 

 5000 





0-70 

 0-92 



13 U4 1 







3-78 







43-16 



60-08 







17uc» 1 









3-95 











I. Lava forming a thick bed north of Coal Hill : contains horn- 

 blende and felspar ; indistinctly crystallized. 



II. Prom a narrow band of smooth rock, from one to two inches 

 thick, of a blue colour, resembling indurated shale ; associated with 

 the lava-flow at Keys End Hill. 



* Ed. New Philosophical Journal, he. cit. 



t The oxides of copper and manganese, especially the latter, are generally 

 present in the Malvern rocks, though often in such small quantities as to make 

 their separation unnecessary. Where the quantities have not been specified, the 

 oxide of copper was weighed with the oxide of iron, and the oxide of manganese 

 with the magnesia. 



