Among all bodies which can be exactly retraced on a plane, the cone and cylinder have the most affinity with the sphere ; the ... In the purely conic projection, a spherical zone is considered as confounding itself with the surface of a truncated cone which is tangent to it. ... and taking OG for the meridian of the middle of the map, we make the angle NOM equal to half the number of degrees contained in theanbsp;...
|Title||:||A system of universal geography|
|Author||:||Conrad Malte-Brun, Jean-Jacques-Nicolas Huot|