A. 
ASTRONOMICAL OBSERVATIONS. 
TABLE No. 1. 
Latitudes determined from astronomical observations. 
Cupola of the church of Juchitan . . 
Church of San Mateo Huazontlan del mar 
Id. San Dionisio Tepehuazontlan 
Id. San Juan Guichicovi 
Id. Santa Maria Chimalapa 
Paso de la Puerta .... 
The strand on the right bank of the Coatzacoalcos 
mouth of the river de la Puerta (or Jumuapa) 
South point of the island of Pedernal 
Horqueta of the island of Tacamichapa 
Hidalgo-titlan 
Mina-titlan . ..... 
Mouth of the Coatzacoalcos Long. W. of Greenwich 9V 
below th 
16° 
16 
16 
16 
16 
17 
17 
17 
17 
17 
17 
17' 0" Lat. 18 
Bocabarra 
94 53 22 
16 
26' 10" 
12 47 
16 30 
58 35 
55 5 
12 35 
21 5 
27 45 
43 „ 
46 36 
58 55 
8 30 
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' 37,5" 
west of Greenwich. 
North West 
Latitudes. Longitudes. 
Cerro del Morro . . . . . . 16" 10' 24" 7' 57" 
Xunirahui 16 12 40 13 10 
Daniguibixo 16 14 36 7 16,5 
Town of Huilotepec 16 14 54 7 42 
Daniliesa (Cerro de la Cueva) . . . 16 20 7 13 16 
