Mineralogy and Geology. 265 
age of the Amador Company, Sutter Creek, omewhat 
— crushing is over $25 per ton, and has nabiadlily insceiel 
om $5 or § the present rate in sinking toa de Ps of 1200 
feet, vee is double the depth of the St. Phillips, at Clun 
ir, discusses at length Sir Roderick Murchison’s sonata 
that aiarts go ome poorer in de and effectually 
proves that there is no evidence of this; but after a care m- 
obtained into consideration, there is pita reas easbanble 
produced in support of the theory that quartz reefs are ric 
they increase in depth, and in addition to this, that they are wider.’ 
A remarkable feature of the Australian gold fields, in which they 
are distinguished above all others, is the magnitude and frequency 
of the nuggets found in them. Mr. myth gives two interesting 
tabular statemerits of remarkable nuggets, the history of which is 
<nown, as compiled by Mr. Birkmyre, an experienced assayer, ss 
the second by Mr. F. Knox Orme, the warden of Dunolly. Of 
Birkmyre’s list (over 150 specimens), only 27 are American 
European. We enumerate a few of the most remarkable Austra- 
lian nuggets, compiled from both tables : 
Tbs. oz. 
Dunolly, date, &e., un ee 
The “ Welcome Singer Nueces found Feb. ie as 869, in the at 
alluvium, near Bull Dog Reef, Dunolly, Victo - 21 inches me ey 
inches in thickness; mixed with the quartz. but ‘the eon body of it 
solid gold; 986 fine; value £9534. The neighborhood o Dumnolly is 
almost an unprospected country. For many ae there na ou p- 
Ping reefs which have yielded very large piece: 
The “Weleome Nugget,’ found eer 15, 1858, at Bakery Hill, 
arat, Victoria, . 180 feet Sa depts ter-worn and inoue shape 2 
<a long by 12 broad aad “ deep; by assay, 992 Saas 
The “Blanche Barkly Nugget,” found 27th August, 1857, at Kingower, 
Victoria, at a <8 of 13 feet, and within five or six feet of holes dug 
eae : 
190 10 
0 
Ibs. 0 lay, &c.; assay, 955; value, £6. 
Found at Canadian Gu ily, Ballard +, Victor ia, 31st  reuteat, 1853, at a 
depth of 60 feet; 989 fine; value, £5, 332 1s. 
Found i in July, 1851, by a native boy, in a heap of quartz at Meroo Creek, 
ver Turon, 53 miles from Batharst, oe S.W. It was in three pieces i. 
when found, though considered as 0 
wre & in 1857 at seas, Victoria, Pass ieabtanttie 
Tough a rust-co! matrix. 
Found Nov. Ist, 1858, Ti Daca sak near Orange, N N.S. W., at a depth oe 
of 35 feet, mingled with quartz and ; of 874 fineness. 
The “ Lady Hamilton Nugget,” found 1854. ‘Sept. 8th, near Canadian oe 
Gully, Ballaarat, Tieloris at a depth of aire 
Did space permit, oe bar fa ees continue ed, by far 
larger number of nuggets fo oot band pe! 100 Ibs. ros : 
history of some of them is sufficiently curious. Many of the 
huggets of Australia are distinctl referred 
with gold distributed 
