OF CORNWALL. 14.9 
brooding, as it were over the treafure underneath. It is fuppofed 
by Tome that this broil was collected and depofited where we find it 
by the waters of the deluge a ; but if the parts of the broil were for- 
tuitoufly call together, they would not be of the fame nature with the 
lode underneath ; they would alfo be found difperfed in other parts 
without diftintftion, as well as where they are ; whereas they are 
found only upon and above the lode : in fhort, the broil is only 
the more fhattered and lefs impregnated part of the lode, which, 
when the fiffure was filled, wanted cement and a proper nidus to 
fix it into a more compad ftate ; and being deferted, as it were, 
by the purer parts of the lode which fettled below, became expofed 
to the impurities of the furrounding earths, and liable to be dif- 
perfed by floods. 
Firft, The broil is found in greater quantity in the vallies than 
on the tops or fides of hills ; in the level grounds, it is but juft moved 
from its firft ftation, and Ipread on each fide the vein in an equable 
manner ; but if the lode has any declivity near it, then many of 
the loole ftones of the broil are found ftrewed down the hill. See 
Plate XVII. Fig. vm. M N O. 
Secondly, The longer the declivity, the farther are thefe ftones 
removed ; but the fhorter and fteeper the fides of the hill are, the 
lefs diftant they are found. 
Thirdly, The fmaller ftones are carried fartheft ; on the contrary, 
the largeft ftones are neareft to the lode. 
Fourthly, The fmaller are alfo nearer to the furface of the 
ground, but the larger ones, deeper, and ftill deeper as you approach 
the lode, till the laft are found contiguous to the lode itfelf. See 
Plate XVII. G, B, H. Fig. vn. 
Fifthly, The farther diftant thefe ftones are from the lode, the 
fewer they are in number ; but they multiply as you come nearer, 
and are always in greateft plenty next the lode. 
Sixthly, Thefe ftones are known from all others by their being 
of a different colour and ftrufture from the fhelf, rubble, and 
other common ftones of the ground where they lie, but more par- 
ticularly by their angles being worn off ; and the farther diftant they 
are from the lode, the fmoother they are ; and the nearer, the lefs 
are their angles blunted. In Cornwall we call thefe difperfed parts 
of the broil Shodes b . See Plate XVII. Fig. vm. 
From daily obferving the grounds they fearch, and the different sect.it. 
fubftances they there meet with, the tinners can readily diftinguifh 
fliodes. 
1 “ Loads ufually covered with rubble and frag- 
ments call upon the veins by the hurry of water,” 
v «. of the deluge. Hutchinfon’s Tracts, vol. I. 
Q^q 
trail ii. page 3. 
b Perhaps from the Teutonic word Shutten, to 
pour forth. 
between 
