ADDITIONAL OBSERVATIONS ON RH^TIC BEDS. 105 
directly on Carboniferous. The limestone floor at New Clifton 
slopes at first gently in .an easterly direction parallel to the 
overlying Black Shales, and then suddenly at an angle of 
about 10° in an easterly direction, and disappears beneath 
the latfer deposits. It should be clearly understood that I 
refer to the slope of the platform, not to the dip of its beds, 
which is 35° S. 80° E. The rock is a dark coarse oolite, with 
shaly bands, and is, apparently, of the Upper Limestone 
Series. The Rhsetic Beds dip at 10°-12° in a direction a 
few degrees N. of E. Their succession is as follows: — 
, The ibeds are lettered to correspond with that in Mr. 
Wickes' paper. 
ft- 
0 
Gotham stone, having at its base a band 
containing Monotis decussata 
M. Laminated, bluish-green clay, with many 
variable, cream-coloured arenaceous 
bands ....... 
K,L. Naiadites beds . . . . . 
/. (Absent) . . . . 
H. Black shaly clay . ..... 
Q. Black shaly limestone, crowded with 
Pecfen valoniensis, Schizodus, Modiola, 
etc., especially in bands. Abundant fish 
remains ....... 0 4-6 
(iv.) Black shaly clay . . . .36 
Narrow ferruginous band . . (variable) 
(iii.) Nodular inconstant limestone and 
clay 0 8 
Narrow ferruginous band . . (variable) 
(ii.) Greenish- black clay ., . .10 
(i.) Well-bedded, black pyritous shale 1 4 
Narrow red ferruginous band . . (variable) 
Some of the bands in bed M superficially resemble compact 
Kmestone, but are more correctly described as calcareous 
sandstone. An analysis of one of the bands yielded the 
percentages: — 
Fine sand . . . . . 59*5 
: Carbonate of lime .... 40 5 
