The Sun.
London, England, 1868-01-18 00:00:00

FOREST TREES.

At a late sitting of the Soci6te des Ingenieurs
Civils, M. Rouyer read a paper on the process of
sylviculture followed during the last 40 years by
de Courval, on a surface of 2,000 hectares (5,000
acres). This process simply consists in thinning the
branches on a judicious principle. Observation has
shown that the sap only produces wood after it has
passed through the leaves. Hence in thinning
the branches the principle to be kept in view is
to prevent the sap from exercising its functions
to the detriment of the trunk. Now the nearer
the branches approach to a vertical direction
the stronger they grow ; consequently verticality
should, as a rule, be exclusively reserved to the
trunk from the roofs to the apex, so as to secure
to it, as nearly as possible, the whole of the wood-
producing power. Not only the vertical but also
some of the horizontal branches should be
lopped off with the same view ; and, as the tree
reaches a certain height, the lower branches
should be removed all round. Here also M.
de Courval has introduced an innovation. Ge-
nerally the branches are lopped off at a certain
distance from the trunk, a practice which fre-
quently leads to caries, extending to the trunk,
and thus causing the destruction of the tree.
M. de Courval cuts them flush to tke trunk, and
protects the wound with coal-tar. In this way the
solution of continuity is speedily covered over again
with new wood and bark, and no caries occur. Ac-
cording to another engineer, M. Flachat, this sys-
tem-of thinning would have another advantage, that
of preventing the fibres of the trunk from grow-
ing in a spiral instead of a vertical direction, a
defect which is attributed to the action of the
wind when it is allowed too great a hold on the
branches.

Foreign Mail Packet List,

MAILS DUE.

knatralia and New Zealand, via Sonthampton.....Jan. 19.
Ditto, via Marseille)) .......... .................Feb. 13.
Ditto, via Panama
drazll, lluimos Ayres, And Monte Video vet) 3.
Ditto, by French paokst
Cape Verde. by Brazil packet ......
.Jape of Good /lope. A.soonsion. and St. llotena Jaa. 27,
China, Penang, and Singapore. via SouLhamptJa Jan. 1 ).
Ditto, via Marseilles ......Jan. 27.
Falkland Islands Jan, —.
Gibraltar, via Southampton
India, via Southampton
Ditto, via MarseiLes
Malta, Egypt, Sta. .. .... •• Jan. 19.
Ditto, Marseilles Jan. 22.
Mauritius, Cape of Good Elope, and Natal, via
Southampton Jan. 19.
Ditto, Marseilles Feb. 19.
Newfoundland ...... .... .......... ....
Portugal .........;Feb. 3.
Ditto, by p riv Li e ship to Oporto ...
Ditto I .tto to Lisbon
United States, l anada, California, &a, by British
packet
Ditto, by L. Lited States packet
Ditto ditto (New York)
Ditto ditto 'New York)

Ditto tint( (Baltimore)
Ditto, by Canadian packet
West Coast of Africa, Madeira, and Teneriffe Jan.l7.
West Indies and ra.cific (except Mexico and Baha-

mae)
Cubs and 3lextoo ...Jan. 28.
Bahamas, via New York Feb. 3.
Bermuda, via Halifax —

The Chamber of Deputies in Wurtemberg has
votedunanimously, with the exception of two members
the new penal law—after, however, having adopted the
amendment by 31. Mehl, relative to the use of juries in
trials of the press for offences against foreign Sovereigns
or Parliaments.

A fire broke out three nights back in a monas-
tery at Hal, about ten miles from Brussels, and in spite of
the active exertions of the population, before it could be
extinguished, the building was destroyed, and the adjoin-
ing church very seriously damaged.
The King of Prussia has sanctioned a treaty to
prolong the privilege of the gaming tables at Wiesbaden
for five years. The establishment is to pay a sum of
one million of thalers (3fr. 75c. each) for getting its lease
renewed.

Two bodies have just been washed ashore in the
Seine, near Havre. They aro those of two young men
named Colboc and Lecesne, who with two others, Mionnet,
and a brother of Colboc, had gone out some days back in
a boat to shoot wild ducks, and had not since been
hoard of.

A fire broke out the day before yesterday at the
cloth mills of Madame Jouen-Lambert, at Elboauf (Seine-
Infdrieure). The flames, by great efforts, were confined
to the fourth floor, in which they had commenced, and
which was entirely gutted.

An explosion of gas took place two days back at
the shop of a printseller named Mesaize, in the Rua de
l'Hopital, at Hayre. The whole of a glass gallery and
the shop windows were blown out, but fortunately no ono
was hurt.

The Corriere Mercantile of Genoa announces that
the Royal steamer Cittia di Napoli has arrived at that port
with the articles which had been sent from Italy to the
Universal Exhibition.
, WINCHESTER COLLEGE.—WO are requested to
state that the election of an Under Master of this College
is unavoidably postponed until a day of which duo notice
will be given.

During the year 1867 462,708 persons travelled
between England and France ; 202,183 via Calais; 152,931
by Boulogne ; 88,294 by Dieppe ; and 19,300 by Havre ;
and 19,707 crossed, via Ostend.

[ADVERTISEMENT.]—henceforth no ono will doubt the valuable
properties of Du Barry's health-restoring Revalenta Arabiev.
Invalids' and Infants' Food, since to the thousands of blessings
it has already received from Invalids whose position had been
deemed hopeless, we may now add that of his Holiness the Pope.
eui
714 f anisocebsdsi
gl .us
whose health has been perfectly restored by it after thirty years
of unsuccessful medical treatment. We quote from the "Gazette
du Midi," July 25th :—" Rome, July 21, 1860.—" The health of
the Holy Father is excellent, especially since, abandoning all
other r.micilies, lie has conaned himself entirely to Du Barry's
Revaleuta Arabiea Food, of which he consumes a plateful
at every meal. It has moduced a surprisingly beneficial
effect on his healt'a, and his Holiness cannot praise this
excellent food too highly." We extract a few oat of
more than 63,000 cures:—pure No. 53,216, of the Marchioness
do Brehan, of seven years' liver complaint, wasting away,
debility, nervousness, with a nervous palpitation all over, bad
digestion, constant sleeplessness, and the must intolerable ner-
spasms, sickness, and
woos agitation. Cure No. 1,771: Lord Stuart do Decies, Lord
0a.1°,1116°,32''70: Mr. James Roberts,
Lieutenant of -Waterford, of many years' dyspepsia. No.-19,532
" Fifty years' indescribable agony from dyspepsia, nervousness,
uao
:if frpiyat- ey;ttßirasai
Baron
asthma, cough,
acojnosityip,aticonu,rellzNtt
nliaignaslm,)oSerptiiatantintraCgoaosuft tbiolono. —d
Beware of the many unsavoury and more than sloppy imitations
lotiorve}w'rrhidinicehrl7:-,'giSethiarnoerunettY,:
auda-
ciously attached •