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remarkable analogies with the yougs and the 

 calpas of the Hindoos: and on the ingenious me- 

 thod employed by the Muysca Indians, a nation 

 of mountaineers of New Grenada, to correct 

 their lunar years by the intercalation of a thirty- 

 seventh moon, called deaf or cuhupqua. It is 

 by collecting and comparing the different sys- 

 tems of American chronology, that we can judge 

 of the communications, which appear to have 

 existed, in very remote times, between the na- 

 tions of India and Tartary, and those of the 

 New Continent. 



The civil year of the Aztecks was a solar year 

 of. three hundred and sixty-five days, and was 

 divided into eighteen months, each of twenty 

 days. After these eighteen months, or three 

 hundred and sixty days, five complementary 

 days were added, and the year began anew. 

 The names of Ton alpolm alii or Cempokualilhuitl, 

 which distinguished this civil calendar from the 

 ritual calendar, sufficiently indicated its principal 

 characters. The first of these names signifies 

 reckoning of the Sun, in opposition to the ritual 

 calendar, called reckoning of the Moon, or Metz- 

 lapohualli : the second denomination is derived 

 from cempohualli, twenty, and ilhuitl, festival ; 

 and it alludes, either to the twenty days con- 

 tained in each month, or the twenty solemn fes- 

 tivals celebrated during the course of a civil 

 year, in the tcocallis, or houses of the gods. 



