Martinsburg gazette. [volume] (Martinsburg, Va. [W. Va.]) 1833-1855, 1839-12-19

HYDRAULIC CEERENTs.

MMR. EDITOR:-The improvements now dai,
va w taking place 10 the arts and sciences pla
us naturally 10 infer still greater results nom W
spirit Of enquiry that has ake such deep roo WIN
,he neopIe. We could indeed wish orr Govern
met3t more Disposed TO countenance scientific men
mi scioati6c pursaitg-but 50 long as the Govern
meat I, the creature, IL will be also tie instrument
of the peoples will. Individual enterprise, there
fore. must and can accomplish ~ America, what
monarcbical patronage has done 10 Eurore. he
vast discoveries that are s~priBging uPsdaily 10 eve
~ part IL our land. in the cultivation OF ne hhe
and mechanical arts, forbid % 70 despair thai our
beloved country viii be other tban foremost 10 tae
race Of scientific pUrsgts; 70 accomplish "b'on,
does Il not behooye every lover OF hls country dna
it, system Of Government, 10 show TO the world
,bat man constitutes a state, and wha. kings, Prin.
ces, and mobiles can do IN Europe, men can 90
here.
We were led to these reflections by observing
he application, at the Cotoctin a~queduct on the
| Chesapeake and Ohio Canal, Of a now and peculiar
| kind of Cement. patented by T. e CoYLg, Of Bal
! nmore, ma. va were entirely scepticai Of tais
high Cement, and believed that human ingenuity
had exhausted itselfin vain without suggesting any
Improvement on the Clements used IN oor agei bnt
in ihis We we're agreeably Disappointed by seeing
the application Of the Cement on the works reier-
red TO.
This new Improvement bids fair to reyolOiionize
in a great measure the mechanic arts with the most
happy tcsulps TO the world ii is simple IN its man
ufacture and application, and above all its cheap
ness. as the materials Of which It is composed are
10 BE found every where.
We have seen the skeleton ofthe wailot an aque-
duct formed with pianks and the space filled with
stones aad Cement, and when the planks were re-
moved, and after the Cement became bard, the
whole walls and bottom OF the a~qucdnct presented
the appearance Of a dark marble BASIN, perfectly
clear and free from pores, with a beautiful high
polisb. "a tight as a bottle and as hard as IRON
thus making the work (Which had been e%onstrpc'
ted with other Cement, but failed perfectly tight
and imperyious to water; besides, by this simple
procese, Tie company have been saved The vast ex-
pense Of rebuilding, which soon must have iaken
place. as the pressure of he water bad washed the
old Cement n,yag and left the pile Of stone a mere
skeleton, without any thing to bind together the
rock composing the structure. We have seen
where the Cement was thrown rromiseuoudy on
hard mountain rock which formed the arch OF the
work, and when the sledge OF crowbar was applied,
the rock invariably broke before the Cemept would
separate the bond which it formed with the stones.
We perceive from reading the pamphlet Of the
Patentee, containing certificates Of the important
yalee Of this Cement-from the highest sources in
our country, proving that which we had heretofore
believed impracticable, namely, the cemcnting OF
store work under water without the aid OF Golfer
dams this is effected in the simplest manner ina
ginable, but the reader must see it applied before
he can form any itea of the important result ema-
batting from this Cement TO our common country -
1t will, in our opinion, supefsede the necessity OF
dressed stone altogether; il will cement any kind
Of Store into one solid mass, and become as hard
as granite in twenty.fou hours; itcaB be moulsed,
shaped, or formed into any wall, vessel, pier, OF
arch which may lie required, or, if desired, the
Cement can be made as elastic ns India rubber;
this may seem strange but 1t is Notwithstanding
true, as hundreds have proved throughout the couu-
Try for the last two years. 1t seems to Us that Mr..
CoYLE has laid dis Cement fairly before the public,
aud in doing so, he has shewp the practical results
ripe and energetic mind, which could only have
been successful by energy of action and uniulag
zeal. This Cement is admirably adapted TO all by
drnulic purposes, such as f~ore,bays of mills, water
tanks, w~ater-works, dams, piers, %cistefns, granary
spriug-houses troughs, rat proof warehouses,
&c. 1t will no doubt be found useful for many
other purposes that experience alone will suggest.
The subscribers, having purchased ofthe Paten-
zee the right for the State of Virginia, avail them
Of the present opportunity OF making known
o the citizens Of Virginia that they are now manu-
acturing the above Cement at the Point OF Rocks,
where any quantity can be furnished to order, We
vjll also sell the rights for Counties, Cities, Towns,
Districts, Farms or Buildings Applications to be
made TO the subscribers living at the Point of
Rocks, Md. JOHN HAM,
PHILIP McGAUGHAN.
Or to WILLIAM c. CLARK,
Harpers-Ferry Jefferson County, Va, who is our
General Agent for the State.
REFERENCES.
U-Artisans aud Builders, vino are not acquaiu-
ed with the merits of this Cement, are referred TO
be following gentlemen for further particulars, as
he subject has been before the Congress Of the
States, who have investigated the matter,
nd consequently are enabled to arrive at correct
onolusions.
His E<cellency, r. NJ. Johnson; His f3xcellen-
g.. Wolf, Philadelphia; His EAcellency, Ger.
lunt, Washington; Cornelius McLane, Esq Ball
imorei DR.. Stewart, do; Hon. George c. Wash
ngton; Hon. Messrs. Mercer, Garland, Preston,
Wise M e Inbusnu TaIfnGarrn TI,ras