Evening star. [volume] (Washington, D.C.) 1854-1972, 1861-01-09

held last night In house adjoining the War De-
tary company to defend the Federal Capital from
mob attacks. Capt. F. r. Dorset was elected
chairman, and Mr.. Thomas g Robinson secre-
tary: Appropriate remarks were made by the
Chairman, after which those present were invited
| to come forward and sign the roll. A large num-
Der responded to the CALL and the work Of enroll.
ment was characterized by the greatest enthu-
GenI E. G. Darlington was present and ad-
dressed the meeting upon the resolutions proposed
py him at the meeting In the Third Ward on
Monday night. He said 1t had been stated by
OF the South hate the people Of the North, and
tie people Of the North bate the South. The ac-
cusatiops were false In his belief The great mass
Of the people Of both sections Were friends and
wanted to be friends, but are misled by unscrupu-
lous and bad men. The great heart Of the Amer
lean nation beats to the music Of the Union, and
he firmly believed that great Union like ours
could not be dissolved. 1t Is the duty of our
people to cherish peace and peaceful relations,
but he spoke upon the authority of Washington
when be said In time Of peace prepare for war
War is alseady begun so FAR one little rebelious
State Is concerned. The flag Of our Union has
been trampled in the dust by horde of traitors
and threats have been made Of an armed invasion
OF our beloved city to prevent the Inauguration Of
Aoraham Lincoln. Shall we, as citizens Of the
Federal Capital suffer our homes to be desecrated
oy these rufians; or shall we rather prepare our
selves to resist invasion, come from what quarter
u may! liz we must have war, let " be prepared
to meet II.
The people Of the South say that the people of
the North are not their friends It Is not so; the
great mass Of the people all this land love one
another Why should they be otherwise than
friends! The history Of the country proves the
people OF the North and Of the South to be equally
brave, generous and patriotic; and no man but a
coward or fool would charge upon either section
the want OF courage. True courage Is inherent
In the whole American heart; and the same prn-
ciples which characterize the people of the Soutb
are equal In the people Of the North. Virginia 10
proud, and Justly so, Of her illustrious sons; SO
may Massachusetts be. Virginia may boast Of
her hero statesman-the illustrious w Washington
put who was 1t but a son of Massach usetts that
discovered In Washington these high attachments
which so eminently qualified him for the position
he held as commander-in-chiefo Of the army of
the Revolution! Who was II but son of Mas
sachusetts that, having discovered those eminent
qualities OF the Father Of his Country, urged his
appointment as commander-in-chiefo Of the Amer
lean Army, Show me great man in the Soutb
and l I'll show you another In the North The peo
pie OF this country are all one in reference To
the great qualities which characterize a great
1t has been threatened that mob of lawless
men are to come here and attempt to resist the
Inauguration of Abraham Lincoln. Shall we. as
citlZens In whose honor Is contided the safety of
the nation Chief Magistrate permit such threat
70 pass unregarded; or shall we stand up like men
to defend our homes from the dastardly invaders,
u Is said, tauntingly, Of our northern brethren,
that they are towards. No man but a coward n
traitor and fool, will utter so foul SANDER on
brave and generous people. We must prepare
ourselves 10 resist any mob, matter from whence
they came This is the purpose Of organization.
Don't wait to be enrolled in the militia | abbor
and denounce this Internal doctrine Of secession.
which threatens to sacrifice our beloved country
Better sacrifice whole hecatombs Of rebels, who
aeiy ana SET naught the authority of the Federal
Government, than sacrifice one principle involv.
ing the perpetuity of our beloved Union
zen. Darlington closed, when three hearty
cheers were given fer the speaker
nd .taA ~ o.
third Ward on Monday night, were then read
The meeting then proceeded to elect officers,
ana the following named gentlemen were elected
Captain, James Kelly First Lieutenant, W lillian
herbert This gentleman served private In
the Mexican war, and was promoted for his paI-
lantry 1t was he who at the battle of Chepul.
tepec, captured the Mexican General Bravo
Second Lieutenant, DIR. JEWELL Third lieutenant
VIM. ii. Hine.
, Each officer on being elected received three
nearly cheers from the crowd, and was called
maIkable for point than flourish
Mr.. Nelly said, In response 10 the call, that he
was much obliged for the honor conferred upon
nln that he was not a man for speeches but thst
wnen the hour OF danger arrived be would not
be found wanting.
Mr.. Herbert said-'soldiers. never talk; but
II you want me, Pm thar" [Cheers and laugh
DR., Jewell said he was astonished at the honor
which had been conferred upon him. He came
tnere to act as private. II we have got to fight,
do he should be found fighting for the UnIos.
Cheers, and cries of good ~
Mr. Hine could but initiate the example Of hi,
superior of1ceIs When his services should be
required in defence of bis country, count on him.
The election of Sergeants was postponed until
the next meeting OF the company.
The meeting then adjourned, to meet at Stott,s
Hall on Friday night next
q Avn nnrp
lecture Of Prof. Fairman Rogers, Of the Uniyer-
sty OF Pennsylvania, was delivered at the Smith
ssnian Institution on Monday night
Having treated in the preceding lectures upon
roads as means of communication. the lecturer
now took up the subject of bridges, works which
form on important part of all roads and especial-
ly OF these In mountainous counties Bridges
are structures TO span springs or chasms All
such structures may be divided into two general
classes-beams and arches The stability of struc-
lures depends upon the resisting power Of the
materials composing them The general laws
governing the stability of structures NAV be de-
duced from dis cussion of observations and ex-
perlments on various forms of structure, the nu-
merical data from careful experiments
When stick or beam is fastened at one end
as into wall, and weight is applied to the
other end, II will first bend, and finally. IL mtb
Gent weight be applied, will break. IL the load
Is slight, il will regain its original form when
the 10 is removed; If it is very heavy the beam
Will take permanent set, which fniures its
strength, even though 1t will not be broken
Udlileo, VINO early sPeculated upon the matter
thought that In this case the beam became ex.
tended by the weight, but James Bemonli who
Investigated Ii more thoroughly, showed that the
upper tbres were extended and the lower ONES
compressed, and at line near the centre which
he called the neutral axis, they were neither com
pressed nor extended
The lecturer then showed by diagrams that
with any weight the DETECTION or binding Of a
oeam Increased In proportion to the cube of its
length, and diminished I'm proportion to the
'ctdth and to the cube Of the Depth SO that IL we
wish to make beam stiff we must increase the
depth In preference to the width. This is the
reason why the floor joists Of houses are ALWAYS
set on the edge, and not on the fat side The
strength Of a beam follows the same general laws
but not exactly In the same proportions A beam
fastened at one end and loaded at the other need
not be 50 deep at the free end az at the other but
may be tapered of without loss of strength or
sunness beam supported at both ends and
loaded In the middle may be properly considered
az IL II We're fastened in the middle and loaded al
the ends, and then its form will be that of two
single beams Joined end to end the middle DOR
ton being the deepest. With given weight of
material the beam is stronger az the material IA
placed further from the neutral axis or towards
the top and bottom Of the beam, since then each
particle acts with the greatest effect The strongest
form Of section is therefore this =, where the
material Is disposed In two hanges, connected by
a thin web. In hollow cylinder, such az
straw which is subjected to strains from all sides
all the material Is at the EDGE and there In none