The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1861-06-21
Interesting Reports from Fortress
Monroe and Western Virginia.
Proclamation Of Gen. Lyon to the
People Of Missouri.
EXPECTED BATTLE AT CAIRO
Ielis Sapol.en'a Views Of the Rebellion and
His Designs on England
re-, &c, ~.
syA SPECIAL WASHINGTON DISPATCHES.

%AsAIS,;rcS June 20 1861.
ACTIVE PREPARATIONS FOR A GRAND BArrLE--AN
IMMEDIATE ArrAcK ON THE UNION FORCES EN-
PTcrED.
From Information received tn Is afternoon ii s believed
that forward movement o. the whole Of General
kcDcwes division repe attack by the rebel forces
is low taking riace. - So
pr Eperson, Of South Reading, Massachusetts, re.
tx,rned from Arlington Heights about two O'Clock, and
reports that the New York Eighth regiment ms started,
with day ratioDs and without knspsacks towards
Fairfax Court The cavalry there hal ALEC already
gone ont and other regiments preparing to follow
without delay The Union and rebel pckets inter
mir .led along the whole line within speaking distance
DR. 6 o Richardson, of Massachusetts, and Mr. Ealcr
,on were Informed by the Provost MARSHAL at AeNan
eria that engagement is noT unavoidable, and as
they were civilians and Northern men, it might he
venient for them take the boat for WASH 2to without
DELAY.
il IL evident IT, II the rebels have pushed forward their
Eres from Manassas junction and Fairfax Court House,
ana il is The opinion Of shrewd military here that
they intend TO engage troops and retire gradually,
tyagjng Cur forces after them. into anbGscade OF
masked Geld batteries 1t s believed that they have d.
cstee batteries all along the line from Manassas Juno ion
10 air Court House and their attack ut present
with the expectation Of carrying defences, but o.
drawing out our troops within reach Of their concealed
= batteries.
This scheme is airoit and might bring disaster to
s;enersl kcDowens command if our officers were not al
ready warned Of IT. but they on their guard, and hay
Ing learned experience from the abuscades already dis
covered, they will move with due caution
NO doubt is entertained that battle is at hand.
Tie rebels kppsar to have ieded to the military
sity make attack, and about to carry their
plans into suton.
Information received nj the War Department At
four O'CLOCK that General Mcdowell and his staff had
within bopr returned 10 his headquarters at
Arlington Heights, from inspection OF the
position CT his forces. He reports everything
e,.,et along the whole line. His lines have
extended and advanced, and officers and
spxicusly awaiting the expected attack.
No passes allowed to be issued either side or
.be river. Everything occurring indicates expectation
end readiness for an immediate engagement IL
expected however, tina, the action will begin until
tc-morrcw morning, although il is probable thst the
ycksts and ousposts may cor!e in collision at various
points during the afternoon and night.
The advance Of General Mellow ellis lines ia quietly pro-
sressirg
II js Understood Al the War Department that General
Beknstcr had moved the main body OF his forces to
wsros cur ines, and Is in close proximity 10 them.
Tie War Department liz buoy In perfectpg arrange
yeats meet their advancing colu INNS. The telegraph
operators despatehog messages the various lines
% Military Telegraph, and courers momenari,y
r,irg and departing. Ali is quiet here but expectation
" intense IN regard 10 the edings the other side
Startling intelligence is hourly looked for.
lnfo IGaien l;s been received that the rebels are
throwing Up ,ntTeLchmen,s one mile beyond Fairfax
Court House
Five colnpanie- OF the Third United States infantry
ard Ct the lrst and of the Eighth United States
iIrsI.ry, all urter the command OF that experienced
.oldcr and gallant of GER Col Dixon S. Miller reached
hero last night, sbou' midnight, direct frorn Chambers
burg Thy h5v. moved over 10 Virginia
Tie artillery AID Ere Zouaves ordered to hold
themselves in readiness.
Nore caution is exercised than formerly granting
fa'sen TO vis.t tie encampnents the Virginia side
While none sven for the qualification of mere
curiosity. ~
FALSE Al ARM At ALIEN ,NDRlt.
INC Ne" fcri seventy first regiment called out
rft h'er midnight last night, and proceeded In steamer
20 h1andra, in consequence of a reporter attack upon
-ht 20 IT. Finding no occasion their services they
oa'orhed ms morning TO their quarters the Navy
YIrd
sEfx.HlL FklSr tLARN AMONG THE tNtoy CAMPS
EaJors having reached Washington thin ar,erno,n
tta. Ike rebel troops hat been discovered in force by
tie rlios Gutposs abi that general alarm had besn
given TO tie diferent regiments composing Genera
hcp1wels co,yT darEse, Immediately proceeded on
horseback TO lines on the Virginia SIDE TO satisfy
D.fe''ss tc the re,sn1.y OF the report found al
thu ngmsRtr 9 bs rsls wag, ppte cP&mssa VI coonel