912 Mr. Bowman on the Natural Terraces 
outlines, and unaided by any instrument, my eye failed to re- 
cognize the points of intersection. The ridges themselves 
follow the slope of the hill to the west, and have an apparent 
dip of about six or eight degrees; but as the true dip of the 
beds composing them averages from 50 to 60 N.N.W., it is 
evident that their superficial outline has been determined by 
the slope of the hill, which intersects the beds diagonally and 
exposes their basset edges. In some parts they are very 
rugged and uneven, and project considerably above the ge- 
neral face of the hill; while the intervening spaces, which are 
so many sunken furrows, have a smooth covering of diluvium 
and sward, and an uniform and gradual slope corresponding 
with that of the ridges. As it is not easy by description alone 
to convey a correct idea of their combined form and character, 
I have constructed the following diagram of the appearance 
they should exhibit in perspective, according to the theory ; 
but it shows them much more regular and uniform than they 
exist in nature, and marks the protuberances which Mr. 
Kemp says “ range horizontally across them, and correspond 
in their respective levels with the terraces on the neighbour- 
ing hills.” The shaded diagonal rows are the sloping ridges 
which rise out of the hollows, their curved tops showing the 
protuberances, and the dotted horizontal lines mark the 
supposed levels of the terraces; which, however, it must be 
remarked, do not appear here, but at corresponding heights 
in other places, and are only introduced to show the horizon- 
tal strike of the protuberances and intermediate indentations. 
This arrangement, as I have already observed, I failed to re- 
cognize ; and I must confess that both the protuberances and 
depressions appeared to me far too irregular and obscure to 
