The Sun.
London, England, 1851-10-04 00:00:00

MEDICAL ADVICE ON THE SECRET INFIRMITIES OF

t OUFH AND MATURITY.
With Plain Directions fcr their Prevention and, Cure.
FIFTY COLOURED ENGRAVINGS ON STEEL.
Just published, in French, English, German, Dutch, Spanish, and
Italian, in a Sealed Envelope, 2s. 6d., or post-free, from the
Author, for forty-two Stamps,
SELP-PRESERVAI'ION; a
Medical Treatise on the Physiology
of Marriage, and on
the Secret Infirmities and Disorders of Youth and Maturity,'
nsually acquired at ass early period of life, which destroy
the physical and mental powers, diminish and enfeeble the n 4210111
feelings, and exhaust the vital energies of Manhood ; with Pracil
Observations on the certain Prevention and successful Treatment 1111
Nervous Debility, Local and Constitutional Weakness, Syphilis,
Stricture, and all Diseases and Derangemente resulting from In,lis-
ccetion, as adopted by Lallemand, Iticord, and other eminent mem-
bers of the faculty in France. With Fifty coloured Engravings,
illustrating the knatorny, Physiology, and Diseases of the Re-
productive Organs, explaining their structures, uses, and functions,
and the various injuries that aro produced in them by solitary
habite, excesses, and infection.

BY SAMUEL LA'MERT, M.D..
ET, BEDFORD-SQUARE, LONDON.
Doctor of Medicine. Matriculated Member of the 'University at Edin-
burgh, Honorary Menaber of the London Hospit:.ll Medical Society,
Licentiate of Apothecaries' Hall, London, Member of the liunterian
Medical gociety of Edinburgh, &c., Le.
This work contains a plain and complete description of the ana-
tomy and physiology of the reproductive organs, and of their relative
conditions in health and disease. Dr. La'Mert, who has taken the
highest medical honours, as evidenced by the diplomas and testimo-
nials inserted in the work, is the only legally qualified medical man
who has exclusively, and for many years, devoted his studies to
the treatment of these complaints. He may he consulted with ad-
vantage by all those whose constitutions may have become debili-
tated through secret practices acquired iv
youth, or by the excesses
of later years, whereby the pleasures of life are marred, the objects
of marriage frustrated, and existence itself rendered a term of un-
ceasing misery and regret.
noPublished by the Author, and may be had of J. Gilbert, 49, Pater-
-63, Oxford-street; Staric, Titchborne-street,
IGI aonr
Gordon,
ao yn
146, Leadenhall-street ; Mann, 23, Cornhill,
or free by,est for forty-two stamps, from tile author's residence, who
consulted on these disorders personally. or by letter, daily,
enir -arrok\
eyt;
Ten till Two. and from Six till Eight,
from

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181.
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EXPERIMENTSAdA;Ii:Ga
SERV AT ORV
Admiralty,
ROYAL 013-
1851.
Sir,—ln reply to your letter of the sth instnnt,- •I
commanded by my Lords Commissioners of the Admami
ralty to transmit to you the accompanyinrr copy of ;
report from the Astronomer Royal, showing
the success-
ful results that have attended the experiments made at
the Royal Observatory at Greenwich, on a clock fitted
with your contrivance for rendering the long and short
arcs of vibration of the pendulum, isochronons.
I am, Sir, your very obelvdieAn
W. A. B. AAAMILTON.
the receipt of
Mr. Loseby, 44, Gerrard-street, Islington.
i)
gGreenwich,acknowledgef
to a clock at the
Loseby to
my opinion on
t youreS icorrectionrl—eßtteyrha have
thevfe th
Observatory,
l l
appliedt llth
hi honourns t
Mr.. , to
c a 11l
Ai
Royal Observatory, for the purpose of making the vi-
brations of the pendulum (as to long and short arcs)
e
isochronons. In reply I have the honour to give the
following general account of the experiment.
Mr. Loseby having
so far explained tome his pro-
posed construction as to make it appear th at the plan
assigned
gplausible, a,
and sparea
ftculro csko,mceapl called
id minaArnoldry u
Nd_i.
adjustments
wna:
t
of his attached apparatus, tho clack way rated every
day, the driving weight of the clock being in alternate
weeks Blbs. and 321bs.
During this time Mr. Loseby had no access to the
clock, the changing of the weights being effected solely
by the assistants of the Royal Observatory.
The rat ,s of the clock and the semi-arcs of vibration
were as follow:
Table 1. Rates of the Clock Arnold 2, when furnished
with Mr. Loseby's apparatus.
(Omitting the details the results are thus given.)
Mean daily losing rate with Sibs 3.57 1 21
Mean daily losing rate with 321bs. 3.51 2 42
semi-arc.
Mr. Loseby's apparatus was then removed, and then
for my own information and without communication
with Mr. Loseby, the clock was rated with the same
change of weights, so as to exhibit the defects of a clock
not furnished with such supplementary apparatus.
The res fits are as follow:
Table 2. Rates of the Clock Arnold 2, when deprived
of Mr. Losoby's apparatus.
(Omitting the details the results aro thus given.)
Mean daily losing rate with Blbs. 63.13 t 22
i
Mean daily losing rate with 321bs. 9.19 2 415 S„''-Tri'-fira,
- -.
From this may he obtained an accurate estimate of
the amount of the defect removed by Mr. Loseby's ap-
paratus.
Loseby'slhecothnetrihvaonneoe is
honour therefore
in re
efuto report that
defect
in clocks which has been required for above a century.
(Signed) G. B, AIRY.