1881.


To

MR. PIERRE LORILLARD.

Who deserves the thanks of the students of American Archæology more than you, for the interest manifested in the explorations of the ruined monuments of Central America, handiwork of the races that inhabited this continent in remote ages, and the material help given by you to Foreign and American explorers in that field of investigations?

Accept, then, my personal thanks, with the dedication of this small Essay. It forms part of the result of many years’ study and hardships among the ruined cities of the Incas, in Peru, and of the Mayas in Yucatan.

Yours very respectfully,
AUGUSTUS Le PLONGEON, M. D.