ales.
<i>Therapon niger</i>, Castln., family <i>Percidae</i>.
A different fish from those to which the name is applied
elsewhere. See <i>Perch</i>.

<hw>Black-and-white Ringed Snake</hw>. See under <i>Snake</i>.

<hw>Black Rock-Cod</hw>, <i>n</i>. an Australian fish, chiefly
of New South Wales, <i>Serranus daemeli</i>, Gunth.; a
different fish from the <i>Rock-Cod</i> of the northern
hemisphere. The Serrani belong to the family <i>Percidae</i>,
and are commonly called "Sea-perches."

1882. Rev. J. E. Tenison-Woods, `Fish of New South Wales,'
p. 33:

"The genus <i>Serranus</i> comprises most of the fishes known
as `rock cod.'. . . One only is sufficiently useful as an
article of food to merit notice, and that is the `black rock
cod' (<i>Serranus damelii</i>, Guenther), without exception the
very best of all our fishes."

<hw>Black-Snake.</hw> See under <i>Snake</i>.

<hw>Black-Swan.</hw> See <i>Swan</i>.

<hw>Black Thursday</hw>, the day of a Victorian conflagration,
which occurred on Feb. 6, 1851. The thermometer was 112
degrees in the shade. Ashes from the fire at Macedon, 46 miles
away, fell in Melbourne. The scene forms the subject of the
celebrated picture entitled "Black Thursday," by William
Strutt, R.B.A.

1859. Rev. J. D. Mereweather, `Diary of a Working Clergyman in
Australia,' p. 81:

"Feb. 21 . . . Dreadful details are reaching us of the great
bush fires which took place at Port Phillip on the 6th of this
month . . . . Already it would seem that the appellation of
`Black Thursday' has been given to the 6th February, 1851, for
it was on that day that the fires raged with the greatest
fury."

1889. Rev. J. H. Zillman, `Australian Life,' p. 39:

"The old colonists still repeat the most terrible stories of
Black Thursday, when the whole country seemed to be on fire.
The flames leaped from tree to tree, across creeks, hills, and
gullies, and swept everything away. Teams of bullocks in the
yoke, mobs of cattle and horses, and even whole families of
human beings, in their bush-huts, were completely destroyed,
and the charred bones alone found after the wind and fire had
subsided."

<hw>Black-Tracker</hw>, <i>n</i>. an aboriginal employed in
tracking criminals.

1867. `Australia as it is,' pp. 88-9:

"The native police, or `black trackers,' as they are sometimes
called, are a body of aborigines trained to act as policemen,
serving under a white commandant--a very clever expedien