New-York tribune., 1879-08-30

put his head over the gate, dropped his lower jaw,
held t firmly and then backed OF TINS opcning the
He then held opGn until MI the other mules
had passed through. The last one. apparently
| IN order 10 admit the satc-opcner. stopped Just
| inside and, backing against the gate, held 1t
| open until the leader had passed through. All
then proceeded TO Craze Tie other instance was OF
cat aud Newfoundland dog both owned by Professor
Wilder. one morning he the deg blsy With remov-
Ing BY his mouth Number of burrs which were on the
cats tail and which were evidently causing her much
uneasiness. This was the remarkable be-
| cause the dog Rad been very much averse
| 10 touching burrs, when he got them
on himself. and almost always waited FOR some person
to remove them from his skin. One OF the burrs was
very persistent and the dog in his efforts TO remove 1t
lifted the from the gronnd by the tail. He then put
one her TAIL between the burr and the DoGy and
with this leverage succeeded IL removing the burr
Professor Wilder expressed donbt whether these
actions were really disntcrested as they seemed lie
suggested possibly the leading muio In the frat
had idea that by opening the gate he could
pass through himself and perhaps the IL 81 nue oaoke0
Rlinyt the gate by accident aud the leader ovaed MN
dog the two ninais lad beer in the habit exchanging
caresses whcn they met every morning. and ne d9ss
ncse might have encountered the burfs accidentally
exciting n aex action which led him TO remove thorn
aimest mechGrcay aud wtbou, any benevolent NO,
tv- R6 EC might have removed them ruin MS own 6En
II No person rad been ut hana 10 take them on
Dr. Charles s. Minot. of Boston, presented his
views on the conditions to be fulfilled by theory
of lfe which called out an active discussion on the
recent laboTs and conclusions of German investi-
gators.
Proiesso. Il. GlrrnGton Bolton, of Trinity Col
lege. reaG hI'ef treatise the occurrence OF
microscopic ol- lis in the vertebra Of the toad.
PROFESSOR FfIRCE or THE sIDEREAL UNIVERSE.
Professor Perce's paper ol the meteorc cOnstitu-
ton of the sidereal universe and the cooling OF the
sun attracted rnuch attention from the eminenee
al. A. tI atrtnr
est Of his theme IL was the first Of series of two
addresses The second, the cooling of the earth,
will be presented Monday. Following are the main
points 81 this valuable and important treatise
ny object said the venerable and famous mathema-
tican, Is iuore TO inquire INTO the present constitution
OF the deredl univ than to consider the past forDa-
ton the future although OF course, the facts Oh tRc
past and the probabilities OF the future may
have legitimate influence III deciding on
present realities. Sir William Thompson adopted
this method of considering the subject In his
magnificent memoir Oh the energies OF tho
solar system printed In the Edinburgh Transactions for
1864 IL deserves all the reputation which 1t has re-
ceived from scientific world lie found In the col
ision OF meeors great Of the SUMS heat
aud in that docriae coincide With him, although do
not obliged limit the or the falling meteorS
to the space interior TO the earhs orbit Icousder the
mvs BILE meteOrs to be Just as important part OF
the sdereal universe the visible meteor and believe
that they perform n most important function. We're
they be a0straced the great source of the heat and
light Of the sars would be taken away; they would
dwinde TO invisible spheres would lose their latont
heats the sun would 90 out and light would cease. The
aggregate Of these invisible mtteors probably sur
passes that OF the visible celestial oSjeots The
gze may be- only that OF fraction Of cubic foot, OF
may embrace myrads OF cubic miles Indeed, every
celestial body may be regarded as meteor, whether
star planet comet nebuls regular Irregular, an
puar or spiral cluster having the uniform character
OF the Peisdes Of the cluster IN Horcues or having
the complex structure OF the me- oule III Oron or tue
stil mghtier complexity Of the Magelionic clouds
Stellar light Is that It seems impossible that
the which 1t emanates be otherwise tnan
gaseous IN its constitution The invisible meteOrs
most probably small cold aud solid whiio the vsible
celestial bodies are large and derive their heat ana S1t
mostly from the collision from the invisible moteos
Tho sun Is he conspicuous and to us the most In
teresting example Of the large meteor The amount Of
heat constantly eaapatng from The sun has been care
fully determined by Poulet and Sir John Herschcl and
their results are accepted by physicists and astrono
mers. II the meteors were supposed to be NOV
ing with least velocity that could be attributed to
them, the weight OF meteors tha' 1t would be
necessary should fall into the sun annually In order to
communicates the amount OF heat now have. would
be about one-hundreth part Of the earh's mass.
wners3s II we give the the greatest velocity OF
which they ptble and suppose them TO pene-
rae the body OF the far as they might, their
part the earth In either the suns mass is ncress
ing but II they tue from within the earths
orbit increase Of does NOT areot the attractive
force manifest TO the EARTH but II shey come from out
| side tho earths orbit the augmentation OF the suns
mas Will be sufficient TO have an important influence
On the oarths and to affect the comparison with
rho ancient ecipses Of the sun and moon. Professor
Neycolnbs nne investigation, however has
set aside all the ancient total eclpses Of
ths sun and substitutes for them the lunar
ecpses The Indebtedness OF tie lunar ecpses makes
1t very doubtful whether they con be considered OF
great value IN regard TO the eay astronomical history
so that Sir Vim. Thempsons for regrettng The
hypothesis Of the meteors falling from outside the
earh's orbit are greatly invalidated. Pouiet made
Investigations upon the heat OF space, which have not
perhaps been sufficiently criticised by physicsts But
admitting 1t Is q valid phenomenon 1t must
be supposed to arise from the direct collision
from the meteors with tho earth and
numerical analysis made by world seom 10 confirm
the resut OF great amount OF this GLASS OF heat
which was determined py Pouil,et The great number
and velocity OF the mctsors which would necessarily
strike jupiter and Saturn would conform to the gener-
ayIeeeived idea that both planets are stll In highly
heated state The constant falling Of meteors upon the
sun would necessarily give rise to the great Jets OF
hydrogen which are observed OF ts surface and TO
be the only reasonable explanation OF them. The full
development or the meteorc theory Of the suns heat
requires that the meteors should fall from an aspherea
envelope OF all the plauitary orbits
Such an envelope could have no visible disturbing iphu
ence upon the orbits OF the planets and might readily be
assumed to be 100 or 1000 times as heavy
as the sun itself Ii Is such a theory OF the
constitution OF the solar system that is sustained by
the constantly observed phenomena Of u condensed
nebulous centre n como nebu!a surrounded by similar
envelopes The great mass OF Invisible meeors would
coincide with the elder Strives conclusion, that
there was an absorption Of the stellar hgnt con-
In The nalpA
Eewconb does not agree entirely with Professor
Peiroe us 10 the heat OF space but Professor