New-York tribune., 1877-11-10
SCIENCE FOR Tue PEOPLE.

Several models Of the houses built 10y an ex-
tinct race IN Sew Mexico and Arizona, have been con
struoei under the auspices Of the HAYDEN Survey Some
Of the Sc models were shown at Philadelphia Mr. Jack
SON the photogfa pber OF the survey has made most OF
tie models The finer described in detail In
recent number OF Forest ard Stream or the models
lately made that OF the town Of Taos il perhaps the
most remarkable; its s1e l. AZ by 80 inccs lts scale,
/ inch 20 feet The work j. hrft done m clay, and
then ~ duplicated ID pias'e ana cafcuy coIuFeu lhe
is described as having two large houses or oPpo
site sides OF a creek that spannei by bridge.
The houses are UO4Oo feet "ny ana loo via" al the
hase five six 81, ries nigh, each story recediug
from the below IT, thus forming terrace structure.
Each story has numerous le hts Nllh small
windows iu the outer tiers OF rooms, tho interior
being dark. The only entrance is 10y "a rap-loOr ina
the roOl. Accent was enocted Iioiu story I"
story by ladders on the outside. which were Drawn
up at night The village was surrounded by
adobe wall enclosing ten or twelve acres, and contained
four est secret couuchOusc-, hch circular,
underground apartments accessible by means Of ladders
through hole In the roof, which fortified by pail
sade Most OF these villages were perched clids Of
be reached only 10y narrow roadway sIaTcases
cut IN the rock perhaps he ascent WAS Ia part facilitated
by ladders.
4 new method for obtaining oxygen chcaply
is announced by VI. Zonno. Tie fun details are not
given, but IL T. stated that the gas obtained by the re-
octon Of potasslc pemang ganate aud barrie peroxide
aced together water These salts are cheap and are
said yield 300 centmotres oi gas oyery gamne
OF the mixture. cheap supply of oxygen would bs
valuable to the world than the discovery Of score
OF silver mines.
November is the month for star showers.
There several centres from which mete are ey-
pected radiate. OF these the LeOnds have the great
est reputation though of recent years they have not
given very rich displays. Their greatest exhibition was
IN sS3; that probably the finest meteOric shower
ever witnessed In 1866 the annual display again cul-
minated The chie interest Of the LeOmd shower arises
from ihe discovery Of schiapare that Tempes comet
Of 500 has orbit nearly II not quite identical with
THAI OF the band Of meeOrs which supply these shower
The theory 10 that the mettOs are the product OF the
comets gradual dissolution The radiant point OF these
mCfrOrs the constellation leo. which about
midnight November 1878. These ne,eOrs afe somewhat
later nthc year than formerly and may be looked
between midnight and morning from November lj 10 20;
last as late an November 2O2l. The
other notable meteor showers 10 be looked FOR this
month have the following dates Gni radiant points IN
Auriga, continued from October; IN Taurus. similarly
continued 10 November ~ in Gemin. from November
-, for a month IN AndrOmeda, on November q; in
Ursa Major, beginning November 23 in Leo Minor
through the latter half OF November.
New Improvements IN the electric light will
into sharp competition with NJ. Jablcchkohs In
yentiOns. But he is stl engaged In making his