SUMMARY OF THE CONTENTS OP VOL. I. 301 



Hypsometric Addenda p. 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 Fe . . 283285 



END OF VOL. I. 



Wilson ADd OgUvy, Printers, 57, Skinner Stet, Snowhiii, London. 



