The national Republican., 1869-02-01

bnrnea, highiy inteinRcnt anu faenonhple
audience assembled at the Surgeon Generals
ONCE, on Tenth street, formerly ford's
Theatre,) TO witness an exhibition Of photo
micrographs and the use Of the microscope.
Among tho audience were several members
OF the Cabinet, Senators and Representatives,
and Generals Thomas, Hancock, and other
prominent officers Of the army and navy,
most Of the visitors being accompanied by
their families.
The muieum hall was brilliantly illuml-
mated and at 2 O'Clock thrown open, to the
o'clock In examining the endless variety OF
anatomical curioslties In this valuable col
lection.
At 8 o'clock the assemblage retired to the
large hall on the ground floor, where all
necessary preparations had been made for
the main feature Of the entertainment. The
room, as soon as the audience were seated,
was darkened, and the apparatus being
ready, DR.. J. j. Woodward announced that
he had been instructed by the Surgeon Gen.
eral to make this exhibition with view TO
show the practicability and yalue Of the dis
coyery. He then explained the defects OF
previous microscopic experiments with the
solar, electric and gas-lights, and said Il was
not till the introduction Of the oxo-calclum
light that they had been brought TO their
present state Of perfection. Amer some
further explanation as to the combination OF
the microscope and the photograph, the
slides, which were exhibited by DR.. Edward
Curtis, assisted by Mr.. Lemerk.
The value Of the microscope In tho dctcc-
tlon Of adulterations OF various kinds was
then fully demonstrated. In the article Of
clothing q single fibre Of wool, cotton, linen
and silk were successfully exhibited, and the
impossibllity Of their being mistaken was
plainly shown.
In articles Of food DR.. Woodward said the
statement recently made by the New York
World, In regard 10 their adulteratlons, were
sadly far from being exaggerated.
Examinations Of coffee showed adultern-
tions In almost every sample ofground cof-
fec--chickory, corn, beans, peas and other
substances were freely used. During the
war the question Of the destination Of 100, 900
pounds Of coffee was submitted to him, and
he found the supposed coffee TO consist In
great part Of Indian corn. Arrowroot, an
article extensively used for the food OF In
fants, he had found to be hardly more than
potato starch. Spices, he said, were seldom
pure. He had procured o number OF samples
In the city, and found not one pure. Wheat,
corn and potato starch were largely used In
these authorizations. Cayenne pepper was
shown pure and adultented with -four and
starch. DR.. Hester, he said, had found red
tlons, but he believed the most deleterious
substances known to be used in this country
was brickdust.
Photographs Of hair were also exhibited,
showing a marked difference betwecnt that
Of child, an adult, an old Indian and ne
gro; also hairs from Polar bear, cat, and
bat.
The blood Of different species was next ex-
amined, and the popular theory that the MI
Qr0 saaf .f In
was exploded by showing that the difference
between human blood and certain animals
was undistinguishable.
Various Parasites were shewn, including
the trichlnae, flea, and sheep-tick, the latter
appearing upon the screen fully six feet In
length, and looking, as a child near so re-
marked "More like old Santa Claus than n
tick" As showing the value Of these re-
searches to the industrial interests, the lee
turer stated that II was estimated that In
Great Britain alone over f5O0, 900 sterling
were annually expended In preparations used
to destroy this little pest. The sugar-mitc
and the yinegnr-eel were next exhibited, and
followed by q variety Of fungi from vegeta-
bic life and decay, and large number Of
other subjects to show the power Of the MI
croscope.
The exhibition, which was something over
an hour In length, was highly interesting
retired, well pleased with their evenings en-
| tertainment.
In this connection, we would remark that
the anatomical museum Is open to the pub
lie daily, from 10 q. m. to 8 p. M, and those
who have never been there will find them
selves richly repaid for visit to 1t.
PREPARATION OF THE JURY-Box.-0n
Saturday the proper officers viz; the regis
| tor af Wa ahinutnp A nnavau aan. thu
clerk OF Georgetown, Mr.. William Laird
and the clerk Of the levy court, Mr.. N. CAL
Ian, were engaged In the Office of the clerk
of the Supreme Court Of the District, In pre-
pairing the Jury list for the ensuing year.
After destroying the papers containing the
names Of jurors left In the box, numbering
from $50 to 200, they proceeded to comply
with the law BY Jointly placing in the box
the names Of 400 persons from the list pre-
pared by the register Of Washington, 10
from the list OF the clerk Of Georgetown, and
40 from the list OF the clerk Of the Levy
Court. This Is done under the 1st section OF
the act Of June 10, 1862, which provides
"That 1t shall be the duty Of the register OF
Washington city, and Of the respective clerks
Of Georgetown and the Levy Court Of Wash
ington county, In the District OF Columbia
and before the first day Of February, in each
year thereafter, to make list Of such Of the
tchte male Citizens, taxpayers, residing pithir
thsir respective Jurisdictions, as they shall
judge best qualified TO serve as jurors In thu
. courts Of said District, In which lists may b.
included, In the discretion ofthe officer max
ing the same, the names Of such qualified
persons as were on the list the previous year
but did not serve as Jurors, and the lists thu
made by the register and the clerks afore
said shall be kept by them respectively, ant
be delivered over to their successors In Office
The second section Of the same act IKE
the number taken from the lists and place,
= in the box, and provides that after the yea
1868 the proportion may be varied according
to the increase or decrease OF population \
, the respective jurisdictions by order OF th
judges Of the Circuit Court Of Washington
county.
. ANSUAL CoSPEREscE.-TheB Baltimore con
, ference Of the Methodist Episcopal Churc
will meet In this city on the 3D. Of Marc
next. This will be the first session sine
the general conference held session an
, enlarged the bounds Of the Baltimore cor
ference SO as TO take In large portion OF tn
East Baltimore conference. There will b
present about 175 ministers, and the bus
, ness to be brought forward will occupy pei
haps ten days or more. The presiding office
. will be the Rev. Bishop Clark, and Ii is es
: pected that the other bishops Of the Church
( with the exception Of one or two, will b
present, as also many prominent divine
=. from other parts Of the country. All th
;. churches in this District will report an II
crease of membership, and under the operd
tlon Of the two years rule, there will be se'
l. eral changes Of ministers. Rev. b. p. Brow
= will be transferred from the Foundry, Nj
= Krebs from the McKendree, DR.. DeHans froi
the Metropolitan, j. N. Davis from Wang
!. chapel, where he has been serving In plat
: Of Rev. G. s. Markham, whose health faile
= him some time since, and Mr.. Hoover ffoi
= Hamline.
= 1t Is probable that DR.. McCanley will =,
70 main at Georgetown station and Rev. Messr
Baldwin, Leech, and Holiday, at Rylan,
Union, and East Washington. 1t Is expectt
that Rev. DR.. Newman, one Of the finest or
a, tors of the Church, and editor Of the Ne
"a Orleans Christian Advocate, will be station,
,c here, and that the Rev. Mr.. Eddy, editor
"A the Western hsfhodit Advocate, will succe'
n the Rev. Andrew Longacre ut Charles-stre
!, N church, Baltimore. There will be no 9TH
a. material changes Of ministers from Bal
Ita tNnt will