39 
TAB. CCXX. 
SILEX Quartzum. 
Variegated Flint Pebbles. : 
Class 2. Earths. Order 1. Homogeneous. 
Gen. 4. Silex. Spec. 1. Quartzum. 
Div. 3. Amorphous. 
\ 
Some time since Mousehold Heath, near Norwich, afforded 
much entertainment from the varieties of stones found near 
Kett’s Castle, such as Petrifactions of Echini, Geodes, and 
variously marked Flint Pebbles nearly resembling the Egyp- 
tian Pebbles, or Jasper, as it is called by Kirwan, &c., it 
bearing much the same affinity to that, as the British do 
to the foreign Jaspers, being more porous and ordinary as 
to hardness, &c, It, however, may often serve as amuse- 
ment toa fertile mind in furnishing it with whimsical shapes ; 
and it is astonishing to see what a difference there is in 
the fanciful ideas of the many curious forms observable in 
these stones, at different times. However, it may happen 
that the lines give so general an appearance of a face, even 
a likeness of a known character, that they have met with 
an almost universal approbation and agreement, and are 
-valued accordingly. The present specimens are rather 
curious examples of the first mentioned, and rather undeter- 
mined in my mind, yet may be more clear to others. Thus 
the left hand upper figure is like a monster, something like 
a boar, which, when turned the other side upwards, re- 
sembles a Rabbi’s head. The right hand upper figure 
is something like a tiger. Those at the botiom nearly speak 
for themselves. The oval one is a boy; the other, like a 
distresed mariner reposing or leaning on a rock, 
