The Collaborative International Dictionary of English v.0.48:

Perspectography \Per`spec*tog"ra*phy\
   (p[~e]r`sp[e^]k*t[o^]g"r[.a]*f[y^]), n.
   The science or art of delineating objects according to the
   laws of perspective; the theory of perspective.
   [1913 Webster]