2oa NATURAL HISTORY 
at their ends : at their interfedtions they make unequal angles, and 
therefore could not be of the ftaladtite kind. Its colour is like 
manufactured copper before it is poliftied. 
Fig. ii. The upper face of a flaky brafs-coloured Ipecimen ; its 
fiirface befet with circular lamina growing lefs towards the top, 
Ihewing that drops of this metal falling from above, were at firft 
large, and Ipread into the broadeft lamina ; a fmaller drop fuc- 
ceeded, and falling on the fame centre, hardened into a lefler circle, 
and fo on, the circles being as many as there were drops. Some 
have five lamina on one another, as 6, c; others two, three, and 
four, large in proportion, and in number equal to the drops which 
fell. This rare Ipecimen fhews how the flaky ore is formed, namely, 
by diftillation. N. B. The under part is bliftered into large tuber- 
cles, as in the following fample. 
in. The bottom of flake-ore bliftered by diftilling into a foft bed, 
(likely of fulphur) each drop making a convexity. 
iv. Brafs-coloured flake-copper, fmall-bliftered, deprefied on the 
furface into five concave cells, divided by plain partitions. 
v. Brafs-coloured, powdered with blue earth, the top divided 
into two cylinders, below which, from a wreathed edge, the fila- 
ments are perpendicular, in the fungite manner. 
vi. Brafs-coloured; the filaments courfing tranfverfely at right 
angles with one another ; it is powdered with a blue little inferiour 
to the ultra-marine. 
vn. A conic clufter of wreathed threads, brafs-coloured, curi- 
oufly interlaced, in fome parts detached from the main body like 
hollow carved-work, incrufted with a beautiful cinereous film, the 
furface rather of a fine grit than fniooth and glofly. 
vm. An hexagonal tube of flake-copper, its perforation filled 
with the fame folution, girt round with a continued bandage of 
bliftered flake-ore. 
ix. Brufh copper-ore, in parallel tubes, of a dufky brown colour. 
x. A folid piece of the fineft green ; its texture confifting of 
different Jlrata of greens, large bliftered, probably the malachites 
of authors. 
xi. Lefs folid green, of a glofly coating, formed into tubes, 
braced with vermicular rings like the joints of a caterpillar ; the 
outer tubes have an inner one inclofed, the perforation fmall as the 
point of a needle. 
xi i. Solid, glofly, green, branchy. 
xiii. Green ; the filaments as fine and glofly as the pile of velvet, 
armed with a thin fhell of bliftered flake-ore, on which are formed 
three parallel circular determinations of the defending Jlria. 
