KUBIDGE — EOCKS OF THE CAPE TOWN DISTEICT. 
371 
continuous with the Zwarteberg range, which I believe to be Devo- 
nian, 1 should consider them also of the same age." — Ihid., pp. 585- 
587. 
Mr. Wylie, Government Geological Surveyor. — " Here" (at Goobe- 
loan's northern base of the Zeurberg) " the shales disappear, and we 
enter upon rocks exactly the same as the Witteubergeu and the Ko- 
roo Poort sandstones in the western district. These continue all the 
way through the Zeurberg. Beside the yellowish or brownish sand- 
stones there are many beds of very sandy shale, usually of a bright 
colour. INIany of the sandstones cannot be distinguished from those 
of Table Mountain, though the latter are of much older date."* 
"The sandstones of the Zeurberg form a great anticlinal arch ; but 
this consists again of three great folds and two or more minor flexures. 
The beds may be seen dipping at all angles from 5° to 80°. On the 
seaward side of the Zeurberg, between the 20th and 21st milestones, 
I again crossed the trap conglomerate on the southern side of the an- 
ticlinaL It there forms a belt in width about 500 yards, and in actual 
thickness is not more than 500 or 600 feet. Grey shales occur both 
above and below it." — ' Notes of a Journey,' etc.. Cape Town, Saul, 
Solomon, & Co. (See also p. 3 of the same, and passim.) 
There may be some little apparent confusion arising out of the 
dijfferent nomenclature used by the authorities I have quoted. The 
fact is, that the beds which are usually blue and clayey schists, with 
some argillaceous sandstones, are generally altered to a micaceous 
chloritic or talcose character, and in the upper part, when mixed with 
the sandstones, are ochry. The spots 
in which Devonian fossils have been 
found, together with the uniformity of 
strike, prove their identity throughout. 
This is now admitted by all observers 
as to this province. Fig. 1.— Section of PickelVonteiu. 
The sections sent herewith are : — (Atheistoue and Kubidge.) 
1. Pickel Voutein, carefully observed by Dr. Atherstone and myself. 
2. Chatty, measured by ^Ir. Pinchin and myself. 3. Section through 
Klein Poorden Poort, by Mr. Pinchin and --..-rv 
myself. These have been merely sketched ;.'[! 'ilijlij? 
without measurement in the present in- ill ' 
stan2e, as I am unfortunately deprived of jji ji'h'lil'ii 
Mr. Pinchin's valuable aid. A carefully exe- il! 
cuted section was sent home to the Geologi- 
cal Society some years ago. 
I will conclude this paper by showing that Fig. 2. — Section through Chatty, 
what I have, I hope, satisfactorily proved of (Pinchin and Rubidge.) 
the quartzite, is also predicable of crystalline limestone or marble — viz. 
the continuity of horizontal beds unconformable with the subjacent 
strata, with beds of the same kind intercalated between the latter. 
* Mr. "NVylie, in his section of this part of the Colony, which, though not published, is 
placed in the Town Hall, in Cape Town, makes the shales above spoken of conformable 
with the sandstones. 
