HAR . 649 HAR 
as a guide, either in or in reli the other mineral strata of this 
' ea character seems Duoden loomadiganligenmenahtptate chains mone ve ow 
exem) : - 
timent. Music, 
ms. 
social. He was addicted to no vice in any part of his 
life.. The virtuous principles which are instilled in his 
works, were exemplified in his conduct. His person 
was of the middle size, and well proportioned; his 
polite, easy, and graceful, flowing from. benevolence of 
pele, His whole character was eminently marked by 
implicity of manners, and w 
and g coon of his heart shine very evidently 
through his. works, and the conclusion of the work on 
Mann poe he addresses aoa seers ence 
munity, and exposes prevailing vices, does much ho- 
nour to his moral and religious character, and evince 
an affectionate concern for the best interests of his 
country, and of mankind. He died at. Bath on the 
28th of August 1757, at the of fifty-two years. 
e was twice married, and left issue by both mar- 
es, two sons, and a daughter. His eldest son got a 
travelling fellowship, and his younger son was entered at 
Oxford in’ Michaelmas term, 1757.—See a Sketch of the 
Life and Character of Dr Hartley, prefixed to. Notes and 
Additions to the work on Man. “By Herman, A. Pisto- 
rius, rector of Poseritz in the island of Rugen, London 
1791; and Dodsley’s Ann. Register, yol. xviii. 
HARTZ, or Hanz, a tract of mountainous country, 
situated in the kingdom of Hanover. It is about 70 
miles long, and 20 broad. The forests of the Hartz 
GA ied anne becrancie tension Cdaaer. 
wood. An insect belonging to the order 
‘ra, nearly allied to the Dermestes typographus, has latel 
committed great ravages in these forests. It infests fir 
trees, and in one tree 80,000 larve have been found. 
The principal minerals are lead, copper, silver, zinc, 
iron, green vitriol, blue vitriol, white vitriol, and sul- 
phur.. The silver mines, which are said to have been 
discovered in the year 968, were the first that were \< 
ed in Europe. The annual product of the lead, silver, 
Pa orares mines, is stated at 157,994 dollars. 
The Editor is indebted to Professor Jameson for the fol- 
“lowingaccount of the mineralogy of the Hartz mountains, 
_ This interesting tract of country is composed of pri- 
mitive transition, fleetz and alluvial rocks ; but hitherto 
no volcanic substances have been met with in it. 
A. Primitive Rocks. 
quartz-rock, primitive;flinty slate, primitive clay slate, 
_ and primitive limestone. 
1, Granite. This rock is supposed to form the central 
_ part of the Hartz, and consequently to support all 
VOL. X. PART 1, 
These are granite, primitive greenstone, horn-rock,. 
cumbent strata, intermixtures of the rocks Pits 
observed, and even veins of the granite shoot from 
the massive rock into the superincumbent ones. 
These facts are differently explained by the Nepta- 
nian and Plutonian speculators. The Neptunists 
consider them as illustrative of the ¢ neous 
aeeniantion of the cis rocks ; — the Plutonists view 
em as irrefragab — granite having been 
. projected in a flui form froma. the: interion. of the 
earth amongst ae strata. 
2. Primitive greenstone. This rests immediately 
on the granite, and sometimes beds of it occur in the 
» clay-slate. Like the granite, it is magnetical, al- 
though it contains no disseminated magnetic iron- 
stone or magnetical mm 
8. Horn-rock, (Horn-fels.) Hitherto mineralogists 
have aonerqaaen to this oe It is an intimate 
mixture of spli uartz, com fe! , in 
which sometimes ~ sometimies "io pm medey 
_ neral predominates, It is eccasionally coloured black 
with schorl. It occurs resting upon granite, and 
_frequently intermixed with that rock at the line of 
Junetion. 
4. Quarlz-rock., Itis either splintery, or composed of 
granular conan . rests — upon the gra- 
nite, or occurs in ternating with greenstone or 
: hereaaee on 
5. Primitive fils le. This rock occurs but sparing- 
gin. Won artz, and is ally disposed. in beds, 
_ alternating with horn- and clay-slate. 
6. Primitive clay-slate. This rock forms beds in flinty- 
slate, primitive limestone, and greenstone. 
Metalliferous venigenous formes in primitive clay- 
slate. 
The following principal formations may be distin- 
guished. 
a. The veins of this formation contain principally 
galena or lead glance, native arsenic, red silver 
ore, with much calcareous spar, and a small por- 
ey se cane SoA yan 
. This formation is almost entirely com: of ga- 
pa “geek of 
red. silver ore, grey copper ore, 
c. In this formation, like the preceding, galena is the 
pavioninning ore, and is associa with a small 
uantity y copper ore, iron pyrites, 
- rites, = stone, brown iron ochre, ex oe] 
ver ore. 
7. Primitive limestone. 
beds, in clay-slate. 
B. Transition Rocks. 
The following rocks of this class are met with in the 
Hartz, via. limestone, greywacke, clay slate, whet slate, 
alum slate, transition flinty, slate, transition trap, and 
1. Limestone: It oceurs-in- beds, often of considerable 
thickness, in greywacke, and transition clay slate. 
2. Greywacke. Greywacke and clay slate are by far 
the. most abundant rocks in-the Harts, It sometimes 
contains glance coal, (blind coal,) and mineral pitch ; 
and occasionally petrifactions of species of the genera 
hysteriolites, and trochites. , , 
3. Clay slate, This.rock is distinctly stratified, and 
4.N 
It occurs but seldom, and in 
