The Sun.
London, England, 1848-09-09 00:00:00

Law Times Office, 29, Essex-street, Strand, London.

rTHE ROYAL POLYTECHNIC
INSTITUTION, REGENT-STREET.
The Cause of the Fatal Explosion in Albany-street explained and
illustrated by Experiments, in a Lecture by Dr. Ryan, on Gas Mak-
ing, in which the new Patent Gas Apparatus of Stephen White, Esq.,
will be exhibited daily at Half-past Three o'clock, and in the Eve-
nings of Monday, Wednesday, and Friday.—A Lecture on the His-
tory, -uses, and Manufacture of Gutta Percha, by Dr. Eachhoffner
daily, at Two o'clock, and in the Evenings of Tuesday, Thursday, and
Saturday.—The various Optical Effects.—Diver and Diving-bell.—
Working Models of Vessels, with Captain Carpenter's Propeller and
Mr. Taylor's Flat-blade Propeller.
Open daily from Eleven to Five ; and in the Evenings (including
Saturday) ftoin Seven till Half-past Tea.
Admission, Is.—Schools, Half-price.—The New Catalogue, Is.

TERlLlTY.—Whatever is unproductive is with-
L_Y out intrinsic value. Man and his Maker alike condemn that
which " yields no fruit," and we find large tracts of land abandoned
for the same reason that caused the barren fig tree to be cursed.
This curse clings to Sterility in every shape ; it brings upon the earth
famine. But the malediction brea.thiza.loudest and deepest into the
ear of those of the humttit race who remain childless in a community
which must altogether fail, without continual additions. Not only
do such encounter the silent scorn or pity of their fellow creatures,
but their own hearts condemn them ; wealth brings no consolation
to the wifeless bosom—brings no return for the childless home.
It is a remarkable fact that the unproductiveness of soil and
species arises from similarity of cause. Some lands are
the produce of vitiated strata that yields an offspring as
unhealthy as itself. Others nurture in their juices the poison of
minerals, which form the foe to vegetation. Others again lose value
by being too early worked, before they are fit for cultivation, Some
soils, originally fertile, become barren by excess of tillage; others
are spoiled by unwholesome manures ; and others, again, by the
want of perseverance and nerve In the husbandman. Mark the ana-
logy! Man also is too often vitiated by the parent from whom he
springs. Man is too often ruined by the indiscriminate use of mine-
rals, such as mercury, &c. Man also tries his constitution too early,
and ovortasts it too late. Man, by unwholesome contact can also in-
fect his frame ; and, to render the comparison complete, man can
render a naturally vital constitution unproductive through ignorance
of his orga-ization and diffidence in his powers. Nor does the analogy
cease here. Tho detriments to cultivation above detailed have peen
recently so entirely overcome by modern improvement in agricul-
ture, that farmers are now enabled to produce crops almost from
stone itself; and, in like manner, Sterility in the human race is non,
removable through the profound discoveries in physic which enlighten
tke present age. In testimony of this, a volume has recently been
produced which fills the heart with hope and is calculated to remove
Sterility altogether. It is from the pen of Messrs. J. L. CURTIS
AND CO., Consulting Surgeons, 7, Frith. street, Soho-square,
London, and bears the title of " MANHOOD: The Causes of its
Premature Decline, with Plain Directions for its Perfect Re-
storation ;" and is sent by W. STRANGE, bookseller, 31, rater-
noster-row, London, post-paid, in a sealed envelope, by initial or to
any address, for 2s. 6d. in postage stamps, secure from oloservatibn.