glyptics		the art of engraving on gems.
curiosa		books on unusual subjects; erotica.
sphragistics		the study of seals and signets.
pyrognostics		the properties of a mineral under a blowpipe flame.
ana		a collection of miscellaneous information on a particular subject; an element in such a collection. [from -ana]
thaumatology		the study of miracles.
koniology		the study of atmospheric dust.
cryptometer		an instrument for measuring the opaqueness of a coat of paint.
arcanist		a person having occult knowledge of ceramics, especially about the making of porcelain.