( 3®58 ) 
Sea-Fort to Ships riding at a pretty diftance in the Road. 
4. In cafe of a clofe Siege^ by this Inftrument, at one^ two, ©r 
three miles diftance » the Bepged may be told , by Ipeaking in 
Cy/>i^r, that there is Relief coming, and how great, and when- 
Andj on the other fide, the Befiegers may thereby threaten and 
difcourage the Bejieged^ in a fpatious Town, By this means 
a General may (peak himfelf to his whole Army • an Herald 
may make a proclamation 5 to be diftindly heard by many 
thoufands • an Overfeer of Works, give orders to many hun- 
dreds of Workmen , without changing his ftation^ Officers 
and others, in cafe of a great Fire, where ufually people are in 
an hurry, may fo govern the Afliftants as to prevent dif order 
and confufion ; Houfe-keeperSj in cale of Thieves attacking 
an Hon(e remote from Neighbours , may immediately call 
upon all the Dwellers round about, within a mile or more, 
and inform them of the Houfe where the robbery is made, the 
number of the Thieves, how drefled and armed , and which 
way they are gone, 
The Author doubts not but this Invention may be much 
improved : But, as to his Probleme above-exprefled5it feems^to 
iTs.that that muft be fetled by Expcrience(rather than Demon- 
ftrations, ) there being a complication of fo many phyfcal 
Accidents, that the negled: of (ome one Un-heeded , may 
foon defeat a demonftration ^ deduced from fome other of 
them* 
Jin 
