488 



have been produced at the same time in the physical outline of the 

 country. 



A communication from Capt. Colquhoun, and addressed to 

 Roderick Impey Murchison, Esq., F.G.S , descriptive of masses of 

 meteoric iron found in Mexico and Potosi, was next read. 



The mass of iron principally noticed in this communication was 

 formerly in the street of San Domingo, at Zacatecas in Mexico. It 

 was about 4| feet long and 1^ broad. On one side it was marked 

 with deep indentations. The other masses were found at Charcas 

 and Pablazon near Catorce. 



A letter was lastly read, from Mr. Gardner, Geographer, to Ro- 

 derick Impey Murchison, Esq., F.G.S. , "On the relative position of 

 land and water with respect to the Antipodes." 



This letter was accompanied by a map of the world, on which 

 was delineated, by colours^ the antipodes of the existing dry land: 

 and the writer of it states that he had ascertained by measurement 

 that only ^'r P art °f tne present continents and islands has land op- 

 posite to it; that the antipodes of the eastern hemisphere are 

 confined to South America, with the exception of about the -b-^-tt part, 

 situated principally in New Zealand ; and that the reciprocal 

 antipodes of the western hemisphere fall on part of China and the 

 Eastern Archipelago. 



