568 
With regard to ftrength, he confiders 
it as an eftablifhed axiom in mechanics, 
that the fabrication of any mechanical 
body, as a fhip, is perfect waen all the com- 
ponent parts have an equal fhare of 
ftrength in proportion to the refiftance re- 
quired ; and endeavours to demonitrate, 
that the methods adopted by him come 
nearer to a ftate of perfection than any 
other mode now prattifed. 
Mr. Brindley then avers that his inven- 
tion will fave at leaft two-thirds. of the 
value. of all the Jodging-kuees uled in a 
firft-rate fhip of war, and as much in an 
Eaft. Indiaman, and all other fhips in pro- 
portion. On board an hundred-gun thip 
there are 360 lodging-knees; the faving, 
therefore, in this article, will be almof 
incredible; but what feems moft impor- 
tant is the faving of immenfe quantities 
of fine oak timber, which are now deitroy - 
ed to obtain knees for the navy. 
The two prominent advantages with re- 
gard to expedition are the following :— 
In the preient praétice, where hanging and 
Jodging-knees are ufed, the fore and aft- 
bolts are conveyed through the beam and 
each knee, and they muft be all complete 
before, the water-ways and. planks of the 
deck can be laid; but fuch is the extreme 
dificulty to obtain knees, that fhips are 
kept from launching, and in docks, many 
Corred? Lift of New Publications. 
[July 1, 
months longer.than they would be, befides 
expofing the infides of fhips to heavy 
rains, which rot the timbers and ends of the 
beams. To remove this inconvenience, 
the plan propofed by Mr. Brindley, as 
having no connection with hanging-knees, 
(which may be faftened to the under-fide 
of the beam) may be made ufe of imme- 
diately. The beams are croffed and lodg- 
ed onthe clamps, and the water. ways and 
planks of the deck laid and caulked, and 
the rains prevented doing any material 
damage. Another advantage is, that 
m old fhips that want repairs, many of 
the beams are found to be rotten at their 
ends, parts that always begin to decay 
firft, confequently the fore and aft-boits 
through the beams can have no fecurity 
in the rotten part of the beam; fo that 
while the prefent praétice continues of 
ufing lodging knees, it becomes neceflary 
to take out the beams, and replace them 
with new ones, in which much time is loft, 
and immenfe  expence incurred. This 
may be completely obviated, by having 
long cheek-pieces of timber bolted and 
fafiened to the fides of fuch beams that 
are only decayed at the ends ; then the 
tie-pieces can be morticed by them, and 
bolted through the fhip’s fide. 
facilitate the repairs of old fhips, and fave 
prodigious expence. 
LIST of tHE NEW PUBLICATIONS in JUNE. 
As the List of New Publications, contained in the Monthly Magazine, is the’ 
— 
ONLY COMPLETE LIST PUBLISHED, and confequently the only one 
that can be ufeful to the Public for purpofes of general reference ; it is requested 
that Authors and Publifbers will continue to communicate Notices of their Works 3 
(polt paid), and they will always be faithfully inferted FREE of EXPENCE. 
THE ARTS. 
The Index to the Arts,« or a complete 
Syftem of Drawing, Etching, Engraving, 
Painting, Perfpe€tive and Surveying; con- 
taining the whole Theory and Praétice of the 
Fine Arts in general. Illuftrated with En- 
gravings, and alfo containing curious and 
ufeful-Mifcellaneous A:ticles. By T. Hod- 
fon. No. 1, (to be completed in thirty num- 
bers) 4to. is. 6d. 
BIOGRAPHY: 
General Biography, or Lives of the mof 
eminent Perfons of all Ages, &c, Compofed 
by J.Aikin, M.D, and others. Vol. 1V. 11.15. 
Lives of the Ancient philofophers, compre- 
hending a choice Selecticn of their beftMaxims, 
Written for the Education of a Prince by the 
Author of Telerachus, Tranflated from 
the French, illustrated with Notes, and pres 
ceded by a Life of Fenelon, by John Cor- 
mach, A.M. 2 vols. 12mo 8s. boards. 
The Life of the late William Cowper, Efq. 
abridged fromthe Quarto Edition of Wil- 
liam Hayley, Efq. With a Portrait, 12mo. 
100 pages, 3s. 6d. boards. 
| DRAMA. 
Shakefpeare with Plates,engraved in a very 
fuperior Style of Elegance and Beauty. Parts 
1 & 2, (intended to be continued weekly till 
completed in forty Parts or lefs), The Tem- 
peft, and The Two Gentlemen of Verona. 
3s. each, or on large paper, with proof im- 
PECINONS. “GS yuh fh ts 
The Hiftorical Play of King John, altered 
from Shakefpeare, as it was performed at 
Covent Garden Theatre, in May, 1803, for 
the Benefit of Mrs. Litchfield. 2s, 6d. o 
The Voice of Nature, a Play, as performed 
2 tae 
This will 
