Vill PREFACE. 
Particular attention is directed to Appendices II and VIII. The 
former deals with the correlation of Maya and Christian chronology and 
attempts to answer the oft-repeated query as to the actual age of the Maya 
civilization, and the latter is a concordance of all known monuments which 
mark the ends of successive 5-year periods in the Maya chronological epoch, 
in effect a table of the relative ages of the several cities and their monu- 
mental remains. ) 
SYLVANUS GRISWOLD MorLEY. 
CARNEGIE INSTITUTION OF WASHINGTON, 
A pril 6, 1920. 
