i 3 6 



HOLLAND: CHARNOCKITE SERIES. 



Ingelsbye in Sweden, whilst Rosenbuch referred to the occurrence 

 of bronzite as a constituent of granite in the Julian Alps. 



The mass of rock from which Job Charnock's tombstone was 



quarried is probably that which forms part of the 



The type-mass of char- hilf south-west of the powder magazine at St. 



nockite. *■ *> 



Thomas' Mount. 1 The north-east and south- 

 west ends of the hill are composed of norite (Nos. 9/657 and 9*660) , 



EIlS CHARNOCKITE 



Norite, 



Scale of yards. 



100 so o 



I l I 



200 



-J — 



400 



eoo 



Fig. 1. — Plan of hill showing the type-masses of charnochite and norite near St. 

 Thomas' Mount, Madras. 



1 I am indebted to His Grace Dr. P. Goethals, S. J., Catholic Archbishop of Calcutta, 

 for calling my' attention to the following passage in the East Indian Chronologist for the year 

 1801. "Charnock's ponderous tombstone appears to have been cut from the quarries of St. 

 1home\ as well as most ot the tablets in the pristine cemetery of Calcutta" (page 85). This 

 confums the conclusion baked on the penological resemblance of Charnock's tombstone to the 

 rocks of Pallavaram and the adjoining mass known as St. Thomas' Mount. The rock is still 

 quarried and used for ornamental purposes in Madras; but, as a result of an attempt to get 

 polished samples from a firm in the city, I find the basic norite, with a specific gravity of 3*03, 

 is as often used as the chamockite. 



( 18 ) 



