30 Anniversary Address. 



Jasper, Lydian stone, Epidote, Micaceous iron, Garnets and 

 Corundum, derived from rocks of different ages. 



There is another interesting locality near Gungpur, on the 

 northern frontier of Orissa, on a river running to the Bay of 

 Bengal, north of Kuttak ; but I have no accurate knowledge of 

 its history. 



To these remarks on Indian diamond beds, I have only to add 

 that, in 1867, 1 had the honour of a visit from an officer of the 

 Bengal army, whose official position gave him great opportunities 

 of acquaintance with the country, and who came to this colony on 

 a tour of inspection, to examine our railways and coal-beds, and 

 from him I learned that the Yicdyhyan conglomerate is chiefly 

 made up of Jasper, Chalcedony, Specular iron, and a green rock, 

 which latter lies en masse on granite ; that the diamonds are of 

 all colours — rose, yellow, brown, black, and pale green — which 

 last being the favourite, or national colour of the followers of 

 Mahomet causes the green diamond to find a ready sale, whilst 

 the others are neglected. In size they are that of a hazel nut, 

 or larger. But, he added, that in the diamond districts the 

 people are wretched ; they think and talk of little but diamonds, 

 which they often swallow if not watched. 



DIAMO>T)S IN ETJSSIA. 



Eussia is a country in which diamonds are also found, but 

 sparingly, as near Bissersk and Chrestovodsviugensk in the Ural 

 chain ; the detritus in which they occur being made up of angular 

 fragments of chloritic, talcose and quartzose rocks. The former 

 of these places was mentioned in 1831 in the " Gornoi " Journal 

 of Petersburg ; and in 1839 Baron von Meyendorf stated to the 

 Geological Society of Prance that diamonds had been discovered 

 in two difi"erent localities, and that they had been found in a 

 microscopic form in native Iridium which had been brought to 

 Paris. (Bull. II., 314;.) 



The first Ural diamond was found at Bissersk in 1829 after 

 Humboldt's visit to Count Poller ; three others were found 

 afterwards in that year. In 1830 other three were found. M. 

 Karpoff, a mining officer, shortly after was deputed to carry on 

 the search, and four were discovered, which are described as 



