safe As*,-/ 
BER 
the case) his own piece better than his fa- 
ther’s. And besides, he declared for New- 
ton, against whom his father had contended 
ail his life. In 1740 our author divided the 
prize, “On the Tides of the Sea,” with 
Euler and Maclaurin. The Academy at 
the same time crowned a fourth piece, the 
chief merit of which was that of being a Car- 
tesian ; but this was the last public act of 
adoration paid by the Academy to the au- 
thority of the author of tb,e Vortices, which 
ithad obeyed but too long. In 1748, Daniel 
Bernoulli succeeded his father John in the 
Academy of Sciences, who had succeeded 
his brother James ; this place, since its first 
erection in 1699, having never been without 
a Bernoulli to fill it. 
Our author was extremely respected at 
Basil; and to bow to Daniel Bernoulli, 
when they met him in the streets, was one 
of the first lessons which every father gave 
every child. He was a man of great sim- 
plicity and modesty of manners. He used 
to tell an anecdote which he said had given 
him more pleasure than all the other honours 
he had received Travelling with a learned 
stranger, who, being pleased with his con- 
versation, asked his name; “I am Daniel 
Bernoulli;” answered he with great mo- 
desty ; “ And I,” said the stranger (who 
thought he meant to laugh at him), “am 
Isaac Newton.” 
After a long, useful, and honourable life, 
Daniel Bernoulli died the 17th of March, 
1782, in the 83d year of his age. 
BERRY, a round fruit, for the most part 
soft, and covered with a thin skin, contain- 
ing seeds in a pulpy substance ; but if it be 
harder, or covered with a thicker skin, it is 
called pomum, apple. 
BERTIERA, in botany, so named from 
M. Bertier, a genus of the Pentandria Mo- 
nogynia class and order. Natural order of 
Contortse, Linn. Bubiacese, Jussieu. Essen- 
tial character : calyx turbinate, five-toothed ; 
corol tube short with a villose mouth ; berry 
globose, inferior, two-celled, many-seeded. 
There is but one species, , t viz. B. guianensis. 
This is a shrub six or seven feet in height, 
the thickness of the human arm ; branches 
opposite, knotty, tomentose. Corolla white, 
found in the wood of Anouna in Guiana, 
flowering and fruiting in the month of June. 
BERYLL, in mineralogy, a species of 
the flint genus, divided by Werner into two 
sub-spehies. 1st, Precious beryll, which is 
green passing on the one side into blue, 
and on the other into yellow; it is com- 
monly mountain green and seladon ; from 
BER 
the former it passes through various shades 
to the wine yellow ; from the latter it 
passes into smalt, sky, and, in rare instances, 
into azure blue. Its colours are generally 
pale, sometimes two at once. It is crys- 
tallized in long equiangular six-sided prisms, 
which are perfect or truncated on the edges 
and angles. The crystals approach to tri- 
hedral, and sometimes to the oblique tetra- 
hedral prisms : they are sometimes heaped 
on each other, the smaller ones being al- 
most uppermost, thus forming a shape like 
a tower : and in other cases they are per- 
forated in the direction of their axes. It is 
commonly transparent, but passing to the 
translucent, and is slightly duplicating. It 
is hard ; scratches quartz ; nearly equal in 
hardness to topaz, with which the mountain 
green variety has often been confounded. 
Easily frangible: and the specific gravity 
is 2.6 or 2.7. Before the blow-pipe it is 
difficultly fusible without addition, but with 
borax it melts easily : it is composed of 
Silica .....68.0 
Alumina 15.0 
Glucine 14.0 
Lime 2.0 
Oxide of iron 1.0 
100,0 
It becomes very electrical by rubbing: 
is found in primitive rocks, accompanied 
with quartz, felspar, garnet, mica, fluor 
spar, and topaz. The most beautiful spe- 
cimens are brought from China and the 
Brazils. They are found also in the Uralian 
mountains, in France, and in Saxony. When 
pure it is cut into stones for rings and neck- 
laces. Its plenty renders it of no great 
value. It was well known to the ancients, 
who procured it from several places where 
it is now found. It is mentioned by Pliny 
and others : the blue varieties were deno- 
minated saphire ; the green, aqua marine, 
and the yellow, topaz. 
The 2d variety is denominated schorlous 
beryll, which is of a straw colour, passing 
to white, green and yellow. The crystals 
are large, middle sized, and hard, but yield- 
ing to the file ; it is brittle, and very easily 
frangible; specific gravity about 3.5. It 
melts with borax into a pure transparent 
glass, and consists of 
Silica. 50 
Alumina 50 
100 
It is found embedded in quartz and mica. 
jMS PE 
mm 
