SUMMARY OF THE CONTENTS OF VOL. I. 801 



Hypsometric Addendc^^. 277 to p. 285. 



Pentland's measurements in the eastern mountain chain of Bolivia. 

 Height of the volcano of Aconcagua according to Fitzroy and 

 Darwin. Western mountain chain of Bolivia . . 277 279 



Mountain systems of North America. Rocky Mountains and the 

 Snowy Chain (Sierra Nevada) of California. Laguna de Timpanogos. 



279-283 



Hypsometrical profile of the Highland of Mexico from the city of 

 Mexico to Santa Ee . . 283285 



END OF VOL. I. 



Wilson and Ogilvy, Printers, 57, Skinner Street, Rnowhill, Londat, 



