[ 5 6 4 ] 
mentioned ; the accuracy of which depends on re- 
prefenting the meridians and parallels in fuch man- 
ner, that when places are laid thereon, according to 
their latitudes and longitudes, they may have fuch 
refpedt to each other, as they have on the globe it- 
felf ; and thofe are either globular or rectilinear. 
Globular , or curvilinear , are either general or par- 
ticular. 
General , are the hemifpheres; for the mod; part 
condrudted dereographically. 
Particular , contain only fome part of the terra- 
queous globe ; and of this fort there are fundry 
modes of condrudtion, which for the mod part 
are defedtive, fo as not to be applied with accuracy 
and facility to the purpofes intended, in determining 
the courfes or bearings of places, their didances, 
or both. 
Rectilinear were therefore very early adopted, on 
which the meridians were defcribed parallel to each 
other, and the degrees of latitude and longitude every- 
where equal ; the rurnbs were confequently right 
lines ; and hereby it was thought, that the courfes 
or bearings of places would be more eafdy deter- 
mined. 
But thefe were found alfo infufRcient and errone- 
ous, the meridians being parallel, which ought to 
converge ; and no method or device ufed to accom- 
modate that parallelifm. 
Notwithdanding the great deficiency in this plane 
map or chart, it was preferred, efpecially in nautical 
bufinefs; and hath 'its ufes at this day in topographic 
condrudtions, as in bays, harbours, and very narrow 
zones. 
However, 
