440 
the gas through tubes; and if desired, the 
air and gas may pass « in» due .proportion 
through the tubes together, which, with a 
few. short turns, ‘willinsure its. auitable pre- 
paration, salthouphe the: distance ‘should be 
short. 
“4 The P< sont vapour engities will work 
without any fire; when the “temperature of 
the weather, in the siin or in the shade, is 
about 80 or 90°, provided the charge be 
inflamed. by the electric spark... With a due 
proportion of ether, according to the tem- 
perature’ of the weather, it is probable 
thatthe. engine will work at any time, 
with only a lamp to inflame the charge. 
“ The, less is the proportion of alcohol 
the higher, temperature will be required. So 
again, the more turns, back and forth, the 
ait makes in, contact with the liquor in 
the box; the lower temperature will: be 
required to:prepare it. If the temperature 
of the box gets down. to about 70°, the 
spirit, of turpentine refuses to come over at 
all, or at least’ in sufficient quantity to 
give energy to the explosion. | I have lately 
substituted.a plunger in: lieu of the piston, 
cylinder; it works well and is more. con- 
venient... A small bellows is convenient in 
putting the engine in motion, or the explo- 
sive air may be blown into the cylinder, 
and inflamed, to warm it and. commence 
the operation. 
“ A-yery easy mode to try an experiment, 
forthe purpose of preparing: this explosive 
air mechanically; is. to haye made:a few 
feet of.inch, tubes, of, common>tin plates. 
These. tubes. should be turned, once in 
about.a footy atright angles, and the long 
part should be filled with small tubes, about 
a,quarter ofan inch in diameter. If air is 
made to pass through this crooked tube, 
while it contains a single spoonful. of high 
proof whisky and spirit of turpentine, with a 
proper temperature, it comes out highly 
explosive, if the current is forced through 
by a hand-bellows,, with ever so much ve- 
locity... As wwe now construct the engine 
aa preparing vessel, it is impossible that 
2. explosion can take place that willinjure 
‘anyones, A few, drops of these liquors, 
on aboard in the sun, with a tumbler in- 
yerted over them, will explode in a short 
time, if a flame is applied. 
“* It will not,-I trust, appear surprising, 
that these improvements are patented. 
fs, L am, dear Sir, yours most respectfully, 
ee “ SaMUEL Morey. 
naisiake S. I-am-sensible that a drawin ng 
ought to accompany this paper, bat at pre- 
sent itis out of my power to furnish one.’ 
» Aérostatics. —A gentleman of the name 
of Genet; a2, contemporary of Montgolfier, . 
but much younger, has obtained a patent 
in “America, for .the . application. of. the 
s ‘ aérostatic “power,” by which he: wnder- 
takes to raise or Jower canal beats,on an 
inelined plane, between a water levelanda 
higher. devels »with, orowithout waitens: He 
ak awe alg’ btfor Yo Melzsiiom’ sd 
Varieties. 
Seb 
will propel boats on a high level destitute 
of water, and lower them toa water ‘level. 
He will raiseor lower carriages on tailways 
from one level to ‘afiother; relieve steam- 
boats’ strarided or’ grounded) &cr ‘Combin> 
ing, also, both aérostatic’ and ‘hydrostatic 
powers, he will ‘vaise or-tower tanat'béats 
to or from a ‘high’ vertical altitude, * raise 
vessels stranded and othér ‘heavy *boties 
from under waters also” ‘om land» by means 
of hydrostatic cranes. He will: ditectshow 
to prevent ships from sinking, &e? ;oand 
finally he will protect or guard steamboats 
against shoals and. focks, \&¢.) We: really 
mean nothing’ disrespectful by the allusion) - 
but we believe Munchausen raised the Col 
lege of Physicians by a similar proceeding.'! { 
Oriental Literature.—It is, reported that 
Mr. Fraehn, of Halle, is composing @ cata- 
logue of Oriental manuscripts which are 
known to exist, but which have wot et 
been found. This. catalogue ‘is ‘to he dis- 
tributed among ambassadors, consuls, and 
travellers whose destination is’ Africa | or 
Asia, and will be of considerable yen in 
directing their researches, 
Zoology.—A. new species, of vob to 
which the name.of Zeus Crinitus-has been 
attached, drifted'in March Jast'to theishores 
of. Block . Island, | United. States». ~The 
length is five inches. and.a jhalfy..the,depth 
more than. three, inches, and, three. quarters, 
the thickness, as.in most,of the dories, very 
inconsiderable;, but) without; entering into 
the detail of the genus, othe) speeifiecha- 
racter of.;this species consists, iny having 
seven rays to the first (dorsal fin, »Six-of 
which are long, and fiye Jong gee rd tp 
forepart of the anal fing, (4. #)4 
Cochineal and» Silk-vorms. csc vith 
towns in the southern provinces ‘of Spain 
great pains are being taken to naturalize 
the cochineal insect. The’ Econoniical 
Society of Cadiz have sueceeded in this 
useful enterprize beyond -their hopes. In 
Murcia and in Carthagena attempts, aecom= 
panied with. the most fortunate ’ results, 
have been made. 'This precious insect feeds 
upon the. leaves» of a» particular sort sof 
cactus, which for somé centuries has thriven 
in ‘Andalusia, and! seems’ to: form impene- 
trable hedges round the vineyards and olive 
plantations.» In) «Murcia, « likewise; the 
Chinese or white-silk-worms have ‘been ins 
troduced, the produce:from which ‘is? supe= 
rior both in) quantity°and quality-te that 
from «the; common worms.: © ‘This’ impor- 
tant improvement is due to the zeal of Don 
Thomas Serrano, who, after/a life devated 
to theohappiness of his ‘country, thas*been — 
foreed to seek» at) Gibraltar anocasylum 
against the persecutions: of )the Sseryilé 
faction. ‘This enlightened: patriot’ isalso 
‘the inventor of amingenious:préparationsby 
which the Jove-apple (‘Lomato ) retains for 
an indefinite time its perfume and>sits 
qualities, and in ‘a! Small :cOmpass“cati be 
-[Oecr. 
transported ‘to cénsiderable-distances; ro 
wh Dawdtiot acw altt bite  etei®-Beid 
Of .gM TF 29 —sse52: al 
