C 55 6 ] 
Norwich may boaft of its firft Appearance there? 
though I am unable to learn the Inventor’s Name. 
However, the Simplicity of the Thing itfelf, and the 
lingular Service it may be of to Multitudes of People, 
renders it (I believe you’il think) not undeferving 
Notice. 
The Materials neceffary to compofe this little Time- 
Piece or Monitor, are nothing more than a fmall 
Candle, of fourteen or fifteen Inches in Lengthy a 
Piece of Thread or Packthread, a graduated Board, 
and a common Stone, or any other ponderous Body : 
But the Drawing added hereto (Tab. I. Fig. 3.) will 
fully explain my Meaning. 
A Reprefents a Board, which hangs commonly 
againft a Wall, divided and figured according to 
the Size of the Candle made ufe of *. 
By A little Shelf to place the Candle on. 
CCy A Thread or Packthread, tied faft at *2), and 
hanging over a Pulley at E, whereto a Weight 
is hung at F. 
By Aiding the Spring of the Candleflick G, up or 
down, as Occafion requires, the Flame of the Can- 
dle is railed as many Hours above the Thread as the 
Perfon that adjufts it defigns to lie before he is called 
up. At the deiired Hour the Candle burns the 
Thread in two, the Weight falls, and, by its Noife, 
feldom fails to wake the Perfon. 
But 
* For want of fuch a Board a common Ruler is frequently ufed, 
to fee the Number of Hours between the Flame of the Candle and 
the Thread. 
