THE CHEOXOLOGICAL CALEISTDAE. 



25 





THE CYCLE. 



The cycle in the Archaic system consists of twenty katuns, or 144,000 days. Thirteen 

 of them constitute a great cycle. They are numerated: 13, 1, 2, 3, 4, 5, 6, 7, 8. 9, 

 10, 11, 12. 



53rd Great Cycle. 



l=Jfl) 



54th Great Cycle. 



55th Great Cycle. 



TEE GREAT CYCLE. 



The great cycle is composed of thirteen cycles, or 1,S72,000 days. As seventy-three 

 great cycles constitute the grand era, and as that number is indivisible, the great 

 cycles must have been numerated to conform to the numeration of the cycles — 

 73, 1, 2, 3, 4, and so on in regular arithmetical progression up to 72. 



BIOL. CESTR.-AMEIt., Archoeol. 



