NEw-xcRK THURSDAY 55oRNHsG, MAY 30. .s45.
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ine=timabe mineral trcasures that withou, It's ai,:.
would have been inaccessible, which has super-
,--tied human lubor at the spIndlc and the loom
and supplied their products III unbounded quantity
nj prfc.. little exceeding hGi OF e raw aateria-
which hs- invaded the waters oe Tn. Cfances anc;
Mississippi and poured the blessings cf civilization
even to The iuncrpost rece@-es OF the srea, cont
nant- Of asia and .Amcrca-ys.ilch ma, superseded
ih. wear hard OF hama. labor al the printing
press and become the Instrument o. The. diifi.so..
OF knc..leCce among the entira human race 4.
price which has rendered II secessibe 20 al-yshcir
has Embarrassed the hor-.. from The and taking
it- place, has gwen ,hc speed OF the Wind 10 the
social intercourse. o distant centres o; population
i the mighty arm OF this OnInipoent agent suddenly,
enfeeblcd and paraly yzcd and are IL The middle
Of the Nineteenth Cen:u-y. destined 10 he the wit
nesses of this lis first signal iiure or il rather
that those whom chance has thrown INTO the nia;l-
agement and gudanco OF his vast enterprise have
wanted the skill 10 devise proper and adequate
means O: applying Tie power placed 1t their dis
pos; TlI.S.. questions which it rash
in anv indicidual however high his atiainments 10
give y dosmatical answer. Nor, indeed. would
such an answer now be- otherwise usetul than as
illustrating the history OF the progress OF steam
machinery


The condition undcr which The problem present
ed itself ten years ago has been gradually and in
sensibly modified by The progressive improvements
which each successive yeac. nay, even cvery re-
volvinc month, has developed IN the art OF steam
navigation. That Ghch might have been linprac
ticable and hopeless IN 1871 was less so III ls3s--
was divestad ii still more Of It's difficulties and Oh
-;accs in l-39-became IN some degree feasible in
1870; and thus, by the progress OF invention and
the Improvement of art. presents Itself under
much more cheering prospects.


Having attended with much interest 10 the growth
of the Atlantic project from its earliest
gestion up to the present hour, and having by my
r.t,.iN- n,pYl
informed of the condition of TINT branch OF the Use
fu Arts which its successful issue must depend
and having regarded Il, moreover, not merely as
great gcchdAic0i experiment but rs q commercial
project the issue of which must depend on the per-
lnanent and certain advantage TO be derived from
til formed early opinions respecting it. and did
not hesitate publicly 10 express them. 1t was ap-
parent as | conceived, that III establishment of
STEAM LINERS between New-Iork and the ports
of England must depend Tor their success upon
their fitness and capability 10 serve those com;
mcrcial purposes which were 30 well fulfilled
hitherto by the Packct-Shps. II was well known
that line of Post-Oticc Steamers. controlled and
subsidized by the British Government. and serving
the colonial objects OF that nation would be estab-
lished and would necessarily enjoy the monopoly
of the Mails. and receive a preference from those
classes of voyaCcrs TO whom expedition was ever;
thing and expense nothing. Against such n Line i,
was evidently hopeless To oppose one directed 10
similar objects. subject To cqnal expense. and not
sustained by the same muneent subsidies. Thu:
New York and Liverpool Line then, if established
at ALL must direct itself to the tulilmcnt OF objects
not aimed nj by the British Post Office Line of
Steamers


Such vcssc ITO be profitable to their owners and
beneficial TO the public, must aim at the acquisition
of powers and capabilities which will enable them
Ia perform the service of the Packet-Ships. They
must in Il word, be PacketShips, III which sufficient
steam power shall be supplied Us may give them
that increased expedition, regularity AM, puncuaii-
Il which in the existing state of the Arts only
be obtained through that agency; but II Il also I'M
portant that they accomplish this without robbns
these ships TO any injurious extent of their present
clpabiliy OF satisfying the wants oi Commerce


Now it appears evident that these ends can only
be obtained by material modification in the form
and position of the propcllmg apparatus. great
reduction in The dimensions OF the machinery and
The surrender 10 The uses OF commerce oi that ~
valuable space which it occupies within tl'.
vessel are also essential. IL Is incumbent on tho
Engineer who assumes the high responsibility OF
the supcrincndence OF such project to leave the
present Packet>h:p in The full and unnpaiTed en-
ioymcni OF it, functions saillng-vesscl. Let
him combine. in short. The agency OF steam with
the undminishel naucal power OF the ship Let
him celebrate the marriage ot the Steam Engine
with the Sailing.Vcssel If he accomplish this
with the skill and success OF Which the PROJECT IS
susceptible, he may fairly hope that his name viii





united with those of ulion and Wait


After some reilcctio,s on tho doubtful success of
the propclling apparatus recently attached to Steam
Vessels engaged in coasting trade as ocean
steamers. md to the defects 81 the regular Steam
Ships. he proceeds


Alihouci. no one who has lived as long md wit
messed somanv disappointed hopes and ialacioas
ticpations in the progress Improvement as have,
WILDE very forward 10 commit himself rs 10 the re-
suits Of projects which still cxis; in state but par
tiay tested By experience, cannot refrain from
giving expression 10 q strong hope and confident
anticipation that the epoch Is al hand which Viii
witness grea: advance IN oc'an-naVlgGilon,-an -and
eift conferred by science upo; The arts not equae';
snrc the invention OF the steamboat and the satet
lamp.


The author then proceeds to describe the propel
lers now in use and illustrates his Lecture by draw
ings of Captain Ericcsons Propeller, and without
expressing entire confidence to ts ultimate sue
cess and entire efficiency, he nclincs to the opinion
that the discovery OF the princpe will lead to very
iuiportan, results and perhaps render it practicable
to introduce into the present packet ships the agen-
cy OF steam. On this point he -ays:


One Of the numerous advantages attending the.o
arrangements is tina, the machinery is capable of
being applied to any of the present packetships
without any serious suspension OF their operation.
or any injurious expenditure. Ii the experiment
about 10 be- made shall therefore be attended with
thai success which we confidently anticipate.
brief period will be- sufficient To convert tie entire
fleet Of packeships between New-Nork and Brit
ain into s,ean, lircrs-unitin- the expedition, Ger
tainty, and regularity, with all their present capa-
bilities for commerce md cargo


We regret that our space will not permit as 10
give the entire Lecture.





rvs- The Celebrated Lectures of Prof. Fauyel-
GOITRAUD on Observation-Disclosures, OF THE
ART OF lMrRovIsc MEMORY handsome royal octave
Of nearly 6O1 paye elegantly bound in c!o with IN engrGy-
IL plr irrIflL. Amin