‘ed with black flax in a glass tube gave.

for three hours, The water in this case
wasslightly acidulatedi with nitric acid ;
the solution was filtered and evaporated to

dryness, to drive of? the ni;ric acid, re-dis-

solved and filtered, to get rid oi’ the animal
matter. _ i _ t I

 To a portion of the solution amnioniacal
initrateof silver was added ; and to another
portion was added the amrnoniacal siilpliate
0? copper, with results similar to those in
No. 1’. A third portion of the liquid was
.siibjet.'ted to the: action of isulphiiretted hy-
drogen, which threw_ own 'a_yel‘lo_w ‘precipi-
tate._ This preicip’:itate' being‘ driécd ‘and heat-

none of the usual indications of arsenic.
As the tivo stomachs were brought to me‘

 

preserved in alchohol, a l’quid which is ca-‘
pable of ‘taking up-considerable quantity of”

arsenious acid, I filtered and evaporated,
the sol it~ion.; occasionally add ng distilled

i
l

water until the alchohol was’ entirely evapio-lc

rated, .VVith the aiiimoniacal nitrate of
silver, the precipitate was quite character-
istic; with the ammoniacal siilphate of
copper it was too white and gelatinous ;
with the sulphuretted hydrogen the preci-
pitate was too dark (or the sulphuret of
'arsenii',this product on being dried and

heated with black flax, gave. no indicat-ionl

of metallic arsenic. ' P Q , .. _
A A From the above experirnents,’I feel asisur.
ed that no arsenic was contained in either

of _the stomachs above mentioned, their,

contents, or in. the..alcohol....ivi1_lQh..,preserved
them, as both the circumstantial and positive
tests would have detected, the one hundredth
part of’ a grain had it been present.

. .Tne' fact that no arsenic was found in the

stomach, does not, however, prove that El.l"‘

senic was not the cause of death;
pecially, as the deceased vomited much and
for a considerable time. The patient might
have died either from the immediate or from
the af'terefFoc.ts of the poison, though none
of this mineral was found. Had the patient
died from the after effects, the arsenic would

and es-'

3
i

have been indicated by the inflamed state of’;

the inner coat of the stomach, which would}
have been covered with red spots ; and such‘

“was, indeed, the case. It is highly proba-;c

ble, t,.13refa.~e, tht the arsenic had been an;

tirely removed from the stomach,’ by vorfiit-5
ing, before death. "-“‘ " i ’

 Tnere is a case of the same kind record

ed in the Philadelphia Journal of Pharmacy,
for ‘July, 1834. The case was examined
by Boctorsjlames B. Rogers, Geo. W. An-
drewsand Win. R. Fisher.

‘A lady was poisoned by arsenious acid,
in soup. and died the same day, having vom.
ited much. On examining the stomach and
contents, not the slightest trace of arsenic

i
l

  'ADVOCA'l:‘E"0F INTERNAL’ IMl’ROVEMEN’I“S.

was perceptible ; but from a portion of’ soup '

that had been saved, it was obtained in
abundance, by every test that was used.
lloctors Prout and Christison, and Prof.
Brande, have also cited cases similar to the
above. '

.-‘l\(1VBl"li.i3eiIl€T«W.‘~t~‘*.

FOR SALE AT THIS 0l+‘.tt‘luLu',

.13 .P-racticcll Treatise on Locoiiiotice Eri-
ginris, with Engravings,by the CI-IEVALlER
DE PAMBOUR-—-l.50 pages large octaVo—-
do tie up in paper covers so as to be sent
‘by mail—-Price $1 50. Postage for any

distance. under 100 miles, 40’C6lllS,- and
60 cts. ‘for ariy distance exceeding 100 ms.

A,Lso—-Van cle Grartf on Railroacl
Curves, done up as above, to be sent by
mail—-Price $1. Postage, 20 cents, or
30 cents, as above.

ALso--Introduction to a view of the
works of the Tiiniiies Timnel—Price fifty
cents. Postage as above, 8 cents, or 12 cts.

 On the receipt of $3, a copy of each
of the above works will be forwarded by
mail to any part of the United States.

10 Wt

A COURSE OF INSTRUCTION IN
CIVIL ENGINEERING, by inforinal
lectures, to occupy two months, commenc-
ing the 1st week of May --Criniprising
. The use ofthe theodolite, level, Compass

.303

DRAWING 'iNs'rnUMEN l'S.——:E.
8; G..VV. Blunt, 154 Water-street, New-

Yorlc, have received, and offer for sale, i

Drawing Iiistriiinenrs of‘ superior qiiality,
English, French, and German .=Manul'ac-
titre

. They have also on_h-and Levels of supe-
rior cpiality at low prices. *

Of?» Orders received at’ this office for the
above lnstriiinenis.

AV ERY’S ROTARY STEAM ]EN.
GlNE_.S._..P_tGENCY._—Tl1e subscriber of-
lers his services to gentlemen desirous of
procuring Steam Engines for driving SAW-

Mn.Ls, GRAIN-MILLS, and erase MANUFAC-
romss ofany kind. ' A . . ‘l N 
‘ Eiigines only will be furnished, or aceom.
panied with Boilers and the necessary ./_ha-
c‘/miery forputting them in operation, and
an Eiigiiieer always sent to put them up.
Iiit‘ormati'on will be given at all times to
those who desire it, either by letter or by
exhibiting the engines in operation in this city.
Inquiries by letter shou d be very explicit
and the answers shall be equally so.
D. K.MlNOR,
30 Wall-st, New York.
AN ELEGAN'l‘ S’l‘EAM_ ENGINE
AND QOILERS, FOR SALE. ‘
THE‘. Stcnin biigiiie and Boilers, belonging to the
S'l‘EAMBUA.’_l‘ tll:lL|SN, and now in the Novelty
y:ll’(l, N Y. Cut-sistiiig of one Horizontal high pres.
sure lfingiiir, (but in iy be made to L-oruleiise Willi lit-
tle additional expense) 36 niches diameter, 10 feet
siroki», With latest improved Piston Valves, and Meta-
lic packing tlirtiuglioiit. , ,
Also, lbiir '1‘ubiilzir Boilers, constructed on th
English Locomotive plan, cmitairiiiig a fire surface

plain table, cross, and sextant explained
upon the I'l'lS.l.l'lJEl'lenl'.S themselves : topo-
,9:-raphical drawing executed iiiider supervi-
sion ; survey of routes ; pnbleins of exca-
vation and embarikiiient -, railroad curves‘,
all the usual details of construction upon
common roads, l'zLlll'O'c‘LtlS, and canals ; in
cluding bridges, culverts, tunnels, and the
viirious kinds of motive power ; nature,
strength and stressof inaiei'ials ; masonry,
carpen'ry and constriiciions in iron; allu-
vial dep isites, guagiiig of streams, 8:0.--
The whole purely elementary. Terms of
admission [0 the coiir.-:e, $20.‘

Apply to C. W. I-lticklcy, Professor of
l\/Iatlieiriaiics in the University, 32 Waver-
ly A lace.

TRANSACTIONS 01-‘ THE INSTETUTION or CIVIL
ENGINEERS or GREAT BRITAIN.

The first volume of this valuable work,
ias ijiist made its appearance in this country.
A few copies, say t-wen-ty-five or thirty only,
iia ve been sent out, and those have nea ly or
quite all been disposed of at ten dollars
each_——a price, although not the 'I.tl7il'llB of the
work, yet one, which will prevent many 05
ouriyouiig Engineers from possessing it. ‘In’
order§th_erei”oi'e, to placeit witiii i their riiach,
and at a convenient price, ‘we shall reprint
the entire work, with all its enginviiigs,
neatly dine on woo.;l,c and issue in six parts
or niuiibers, lot‘ about 48 pages each, which
can besent to any part of the United States
by mail, as issued, or put up in a volume at

the close.

Tiie price will be to subscribers three dol-
lars, or jive dollars for two copies._.,ciliray.-.
in advance. The first number will be ready

For delivery ‘early in April-—Subscriptions
are solicited. . . e 1

ul over 800 feet in each, or 25UU feel. in iill--giviltlaa
Sold cheap. All comrnuiiicatioiis addressed {post paid)
tothe subscriber, will meet with due attention ” i ” ‘
HENRY BURDEN. -
Troy Iron Viforlts, Nov. l5, ltl36 . (-41

TU RALLROAD co».vraAC'roR'sT

SEALED proposals will be received at
the office of the Selma and Tennessee River Rail-
road Company, in the town of St-‘lmtl, Alabama, fur
the grudiiatioii of the first forty miles of the Selma.
nnil’1‘ennessee Railroad Proposals for the flrst six
miles from Selma, will be received after the first of
May, and acted on by the Board on the 15th May.
Proposals for the ensuing 34 miles, will be received
after the lOth May, tout viill not be examined until
[hm isi of august iii.-x , when the work will bereiidy
for contract.

The line, after the first few miles, pursuiniz the flat
ol'ihe Mulberry Crei-li, occupies a region of country,
having the repute of being highly healthful. Iris
free from ponds and sivaiiiips, and is well watered -
Tiie soil is generally in cultivation, and is dry, light

and sandy, and uiicomniunly easy of exr*ava.ioii.~—

'l‘he entire length of the line of the Sel a and 'I‘en-
nets.-ii R.-Ill.l‘l)l.ltlS, will be about I70 miles, passing gen-
eratiy through a region as i'avorabie for health as any
in the Soutli--in Country

Uwiiig in the great interest at stake in the success
oi this eiiierprise, and the amount of capital already
einbairki-~d in it, this woik must necessarily proceed
Wll.l’1 vigor, and liiivito the attention ufmeii of indus-
try and ei'iiei-prise, built at the l\urtli and elsvwlrere
to this uiidei-taking, as offering in the piospectof
continued eiiipluyinent, and the character of lllBa8Uil
and climate, at wide. and desirable_.'1ii:ld to.the:nuii,«

irat-tori, v

Pi‘-oposuls ‘may be aciclrassed - eiiher;to”‘.':ho- iifibdfifi

‘bet-, or iotGe-ineral Giiben: Shearer, Pl'6Sit.l8ni.Ofll1$

Uoiiipuiiy. _ r . c _
ANDREW ALFRED lJl1.X'l‘ER, Chief Engineer.
:si:lin.i, Al-.i., Mirch 20th, 1837.. ' A i5 tf
ROACH oz WARNER, ’
Manufacturers of OPTICAL, MA I H hllll ATICAL
AN 1) Ptl1LUSOPl~tlCAL l.\STRUMt'.N PS, 293
Bro-aiway, New Yoik, wili keep constantly on hand
it tinge and general assortment of Instruments in their

it e.
W hoiesaln Dealers and Cmiritry illereliants supplied
with. SI HVEYING COMPASS E-5‘, B A ltU.i]l~Z-
'1‘Elt,S, TH HltltlOM E'l‘r.ltS‘, &c; &e. of their own
tflilfluftlfilllrf,'W:l1‘£l1l)l.8Ll accurate, and at lower price:
than -can be had at any other esiablisliment.
1niitrnmemsmii.de‘to order and repaired. 14 ly .