New Orleans daily crescent. [volume] ([New Orleans, La.]) 1851-1866, 1866-06-14
Scientific Items.

The fotstive power of the air-sacks and hollow
bones OF pigeon when the contained aiais raised
to the temperature Of the birds body is less han
gram Weight q faet which proves that birds are
| sustained in the air solely by muscular exertion
The air sacks connected with the lungs are sup
posed to be for the purpose of keeping up con-
stant current Of air over the caplIaries which are
naked in the lungs. They open and contract N
alienation with the lungs; that is they axpand
when the lungs contract etc.
A late attempt to find the Temple of Diana al
outside the city walls, has failed The recovery Of
the 0deon is progressing, and the marble ID as
bright as if just polished.
A striking instance Of the conversion Of mo-
ton into heat has been furnished by q turbine
water-wheel, worked at Lowell, Massachusetts,, It
rested on block of case-hardened IRON the pin Of
the shaft being of steel and two and half inches
thick. The turbine suddenly began to run un-
steady; and an examination showed that both pin
and block were partially fused. And this had oe-
CURED though placed in current Of 4500 cubic
feet Of water per minute.
| curious effect Of the influence Of civilization
upon nature is seen In Pennsylvania The fora OF
the State is found to have undergone remarkable
changes, plants that were formerly rare being now
| quite abundant This effect is attributed to the
| spread Of railways and the change il so marked
supplant the native. The valley of the Susquer
hanna has already been taken possession of by the
invaders
The theory that ozone and antozone are two
opposite electrical states Of oxygen and that or
dinary oxygen is composed of the two opponents
balancing each other, has led to the theory that
all matter is in this condition. and several import
ant observations have been made which 60 to
sustain the view.
An engineer has planned tunnel to connect
| Hoboken, N. j., with New York city. He pro-
poses cast-iron tube of five feet Internal di-
ameter in lengths of twelve feet, with spherical
joints, to allow for change Of position. The bed
of the river would have to be eieyeiIed by dredging
& Ehe tunnel Is designed to convey the Erie Rail
i Ifu i4p a.
Duane street pier in New York, and is destined to
!: + be worked by the pneumatic method
In 1850 the daily water supply Of London was
A 1888 900 gallons In 1856 so 900 000 ana in 1866
1OS 900, 900 gallons OF this the law allows
lOO,O0OO00 gallons daily to be drawn from the
/ Thames though the amount SO taken is really less
| than this.
| In ascending into the air, the heart-beats in
crease five for the first 5000 feet seven tor the nexo
1900 feet eight for the next 1900 feet and five for
each 1900 feet of ascent after that. This is an
average increase of one beat for each 100 Yards OF
4 ascent.
By carefully attacking glass with hydro.fuoric
| acid microscopic crystals are developed, which
proves thatwe not yet acquainted with the true
composition of this substance. The CRYSTALS vary
with different glasses.
The celebrated Cavour irrigation canal, from the
river Po to the Ticno, has been completed and
| opened. 1t has $50 important works along It's
banks, and is the most important canal for irriga.
| ton in Europe.
Hayden, Of the New York Review, grows cutie,
facetious over Max strakOsch. He says:
| Our nomadic Strakosch-who is continually fold
/ ing his tent like the Arab, and as continually If
mot as silently, passing away-When last heard
from was in Cincinnass The effect on the rains OF
| Pixies Opera House is not stated: but it must
have aggravated them. Mr.. Strakosch appeared
| TO be in the enjoyment Of good newspaper health.
| He is, we are glad TO learn, making money. A
gentleman in Chicago spoke well Of the company
only as late as last Wednesday week. He omar.
relied with his father, on the subject OF the chorus,
and has since been pronounced incurable.