A. 
ASTRONOMICAL OBSERVATIONS. 
TABLE No. 1. 
Latitudes determined from astronomical observations. 
Cupola of the church of Juchitan ...... 16° 2 6 1 IQ 1 ' 
Church of San Mateo Huazontlan del mar . . . . 16 12 47 
Id. San Dionisio Tepehuazontlan . . . . 16 16 SO 
Id. San Juan Guichicovi . . . . . 16 58 35 
Id. Santa Maria Chimalapa. 16 55 5 
Paso de la Puerta.17 12 35 
The strand on the right hank of the Coatzacoalcos below the 
mouth of the river de la Puerta (or Jumuapa) . . . 17 21 5 
South point of the island of Pedernal. 17 27 45 
Horqueta of the island of Tacamichapa . . . . 17 43 „ 
Hidalgo-titlan . 17 46 36 
Mina-titlan 17 58 55 
Mouth of the Coatzacoalcos Long. W. of Greenwich 94° 17' 0“ Lat. 18 8 30 
Bocabarra „ 94 53 22 16 13 „ 
TABLE No. 2. 
Geographical positions of the principal points of the Triangulation. 
The longitudes reckoned from the meridian of Juchitan, which is 95° 9 l 37,5" 
west of Greenwich. 
Cerro del Morro 
Xunirahui 
Daniguibixo 
Town of Huilotepec . 
Daniliesa (Cerro de la Cueva) 
North 
Latitudes. 
16° 10' 24“ 
16 12 40 
16 14 36 
16 14 54 
16 20 7 
West 
Longitudes. 
7 l 57“ 
13 10 
7 16,5 
7 42 
13 16 
