L56 
MR. C. BARRINGTON BROWN AND PROFESSOR J. W. JUDD 
of parties who desired to obtain a concession of the ruby mines from the British 
Government.* 
In the following year the Secretary of State for India determined to send out an 
agent to make independent enquiries concerning the value of the mines, and the con¬ 
ditions under which it would be advisable to permit of their being worked. 
Mr. G. Barrington Brown was selected for this task, and every facility was given 
to him by the civil and military authorities of the country for carrying on his 
researches. The Secretary of State for India also directed that the specimens collected 
during this expedition should be sent to the Royal College of Science, with the under¬ 
standing that, after being studied and described, they should be deposited in the 
British Museum, and in the Museum of Practical Geology, Jermyn Street. 
Mr. C. Barrington Brown’s report on the Ruby Mines of Burma was forwarded 
to the Indian Government, June 15th, 1888 ; the fuller account of the geology of the 
country being deferred till the large and interesting collection of rocks and minerals 
brought from Burma could be examined and described. 
Subsequently to Mr. Barrington Brown’s return two interesting notes have been 
published by Dr. Fritz Noetling, Palaeontologist to the Geological Survey of India ; 
one a “ Report on the Namseka Ruby Mine in the Mainglon State (Northern Shan 
Slates),” and the other a “ Report on the Tourmaline Mines near Mainglon.” These 
mines are both situated in the district closety adjoining the ruby district of Burma.! 
In 1889, also, Mr. T. La Touche, of the Geological Survey of India, gave an 
account of the sapphire mines in the Zanskar Valley, in Kashmir, where the blue 
corundum occurs in gneiss, apparently very similar to that of Burma, the minerals 
associated with it being anthophyllite (kupfferite), tourmaline, and its alteration 
product cookeite, spodumene, and lazurite.j 
In the following memoir each section is initialled by the author who is responsible 
for its contents. J. W. J. 
II. Geographical Distribution of the Ruby-bearing Rocks in Upper Burma. 
Extending from Wapudoung village, 11 miles east of the military post of The- 
bayetkin, to the Shan town of Momeit, in an east-north-east direction, is a wide belt 
of mountainous country, composed of gneissic rocks, containing along its central 
portion massive beds of crystalline limestone. The breadth of this tract is about 
12 miles, in its widest part; and it has a length of 26 miles. It is situated at a 
distance of 90 miles to the north-north-east of Mandalay. The rocks forming this 
mountainous district, especially in the central part of its eastern extension, are ruby 
* 1 Joarn. Soc. of Arts,’ Feb. 22, 1889; “ Precious Stones and Gems,” Streeter, 5th edition, 1892, 
p. 165. 
t Dr. Noetling’s reports are dated 13th November, 1890. 
1 ‘Records of the Geological Survey of India,’ vol. 23, Part II., pp. 59-69. 
