148 On Calderite, a new Rock from Burdwan. 



I have then considered that, as we are certainly entitled to name it, 

 no name can be more justly bestowed upon it than one in honour of a 

 much lamented member of the Asiatic Society of Bengal, the late Mr. 

 James Calder, whose early views of the Geology of India* are still 

 quoted with high and deserved approbation, whose collections and 

 specimens form a valuable part of our Museum and whose constant 

 zeal for, and encouragement to the pursuit of, Mineralogy and Geology, 

 as well as all other branches of science, many will yet remember as well 

 as myself. I have therefore named it Calderite, 



* Asiatic Researches, Vol. XVIII. p. 1. 



