aaa ll 
- 
_Trepeated. 
1808.] 
music are the semi-breve, the minim, the 
* crotchet, and the quaver. Instead of these 
are to be substituted the period, the colon, 
the semicolon, the comma. In the pre- 
“sent notation, the notes are placed on lines 
and spaces, and by this means the scale 
is described, which consists of the first 
seven letters of the alphabet five times 
to be the letters themselves, they will 
completely do away the cliffs. The first 
seven letters are to be large Roman ca- 
‘pitals ; the second seven Italic capitals ; 
the third seven small Roman capitals ; 
the fourth seven small. Roman; and the 
fifth seven small Italic. For the sharp 
and flat will be used the acute and grave 
‘accents: instead of the bars are to be 
used dashes —— and the marks used to 
distinguish sections §; these and other 
alterations are to be introduced, which 
we suspect musicians will not very wil- 
-lingly sanction. Teachers do not readily 
-become leamers; nor will it be an easy 
task for Mr, Dibdin to persuade adepts 
in the musical world that the proposed 
alterations are indeed improvements. 
We remember some years ayo a mathe- 
‘‘matician attempted to prove that the 
words plus and minus, and other algebraic 
terms, were not only barbarous, but ought 
to be discarded by the English stu- 
‘dent. As we predicted, the terms which 
had been sanctioned by ages and the 
‘most respectable authority, still remain, 
while the book that would have excited 
‘a needless innovation is well nigh forgot- 
ten. We suspect Mr. D.’s invention will 
experience a similar fate. 
——— 
MR. EDWARD WEEKS, (DENBIGH, WALTS,) 
Sor a new and improved Frame for for- 
cing Cucumbers, &c. 
This is a-double frame, of which the 
external one is nearly similar to that 
which is already in use. The internal 
frame is made without covering, aud with 
a boarded bottom sufficiently strong for 
sustaining the weight of the earth placed 
on it for the growth and sustenance of 
lants, and not on the dung or hot-hed. 
‘Lhe bottom of the external frame being 
farger than that of the internal, a space is 
left between the two for the admission of 
the heat to the plants, which passes to 
them from the hot-bed through such 
‘spaces or cavities, and not to the roots 
of the plants through the earth as in the 
minon way. ‘The internal frame is so 
contrived, by means of rack-work, &c, 
shat it can with the earth upon it, and 
a 
Op SPs 
- New Patents lately enrolled. 
The substitutes are intended 
63 
the plants growing thereon, be raised or 
drawn up altogether within the external 
frame nearer to the glass lights, and by 
that means the plants or fruits may be 
made to receive a greater and more be- 
neficial. influence from the rays of the 
sun; it may likewise be lowered at plea- 
sure, and be suspended at any distance 
between the glass and hot-bed, by which 
a due degree of temperature may be re- 
gulated. ‘The admission of the heat from 
the hot-bed through the cavities or 
spaces between the frames to the plants 
or fruits, is also an advantage, as It pre- 
vents the roots of the plants from being 
burnt or damaged by a superabundant 
heat arising from the hot-bed througly the 
earth. 
a 
MR. DANIEL DERING. MATHEWS, (MARY 
LE BONE,) for Improvements in. the 
Construction of Watches and Chreno- 
meters. 
Mr. Mathew has annexed to his speci- 
fication drawings explanatory of his in- 
vention ; but as we have no means of in- 
troducing these into this work, it will be 
difficult to render our account intelligible, 
The escapement is of a new construction, 
depending however on the number of 
teeth in two equal and similar wheels, 
which number is to be regulated by the 
number of beats to be produced in a 
given time. The arms of the pallets ter- 
minate in distinct centres of motion, but 
so disposed as to cause the motion of the 
arms to be concentric with each other, 
and with the balance itself: in other 
words, the pallets and the balance move 
in different planes upon onc and the same 
imaginary line or virtual axis. There is 
a piece by which the pallets and balance 
are supported, and back-springs which 
urge the pallets towards the wheels; and 
to each lever there is opposed a stop 
which prevents the pallet from advancing 
so far as to touch the rim of its corre-* 
spondent wheel, The back-springs may 
be respectively adjusted, with regard 
to their strength and action upon the 
said levers, by means of a screw applied 
to each, or by setting ar bending, or by 
taking down the thickness thereof, and 
thus by their action upon the -baiance, 
supply the place and office af the pendus 
lum spring. ‘To etfect these purpures, & 
compensation for heat and cold may Le 
applied in any of the usual methods to 
the springs, instead of a compensation (o 
the balance itself; and the strength aud 
action of the springs may be regulat a, 
Phen an 
