geoscopy

From geo- +‎ -scopy.

geoscopy (uncountable)

1. (dated) Knowledge or study of the earth or soil, obtained by inspection.
   • 1882, William Elliot Griffis, Corea, the Hermit Nation:

     The School of Astronomy, geoscopy, and the choice of fortunate days

This term is no longer in common parlance, and soil science is roughly the modern day equivalent.

• geoscopic

• “geoscopy”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.