419 



nia % is common in the primitive limestone 

 (without dolomite) were useless. In Europe 

 beds of primitive limestone are generally ob- 

 served in the mica slates ; but we find also 

 saccharoidal limestone in a gneiss of the most 

 ancient formation, in Sweden near Upsal, in 

 Saxony near Buckersdorf, and in the Alps in 

 the road over the Simplon. These situations 

 are analogous to that of Caraccas. The phe- 

 nomena of geognosy, particularly those which 

 are connected with the stratification of rocks, 

 and their grouping, are never solitary ; but are 

 found the same in both hemispheres. I was 

 the more struck with these relations, and this 

 identity of formations, as at the time I un- 

 dertook my journey, mineralogists were unac- 

 quainted with the name of a single rock of Ve- 

 nezuela, New Grenada, and the Cordilleras of 

 Quito. 



with 60° of dip N. W. Exceptions merely local are ob- 

 served in a small space of ground near the Cross of La 

 Guayra (hor. 6 2, dip 8° N.) ; and higher up, opposite the 

 Quebrada of Tipe (hor. 12, dip 50° W.) 

 t Near WunsiedeL 



2k 2 



