PREVIOUS AUTHORS. 41 



in 1879. Entering the province to the south-east of A-tun-tzu, 

 he marched down the valley of the Yang-tze to Li-chiang Fu, and 

 thence, still proceeding southwards, to Ta-li Fu. From this city 

 the main westerly route to Bhamo in Upper Burma was crossed. 

 This work is purely geological. 1 



Duelos accompanied the Lyons Mission during its tours in va- 

 rious parts of China in the years 1895-1897, and has published a 

 report on the mines and metallurgical industry of Yunnan, Kuei- 

 chou and Ssu-ch'uan. 2 



Leclere, " Ingenieur en chef des Mines," acting in concert 

 with the mission under Guillemoto, which had for its object the 

 question of the extension of the railways of French Indo-China 

 into China proper, made extensive traverses in the provinces of 

 Yunnan, Kuei-chou and Kuang-si from December 1897 to July 1898 

 and has given valuable accounts of the geology and mineral re- 

 sources of the regions he traversed. 3 



Monody "Chef adjoint du service geologique de la colonic ", 

 also made tours in Yunnan about the same time as Lcclere. His 

 results, which differ somewhat from those of the latter geologist 

 arc to be found in Le Bulletin economique de VIndo-Chine.* 



Logan Jack, at one time Government Geologist of Queensland, 

 has published an account of his travels through China to Burma, 

 while escaping from China during the Boxer rising of 1900. Dr. 

 Jack mentions the various mineral deposits he happened to meet 

 with. 5 



Lantenois, i: Ingenieur en chef des Mines et Directeur du Service 

 des Mines de rindo-Chine", undertook the investigation of the 

 mineral questions connected with the definite choice of a route for 

 the Tongking- Yunnan Fu Railway. His party worked in Yunnan 

 from September 1903 to January 1901, confining themselves 

 entirely to the region between Lao Kai on the Tongking frontier 

 and Yunnan Fu. 6 



1 Dievrissenschafilichen Ergebnisse der Reisedes Orafen Beta Szechenyi inOst-Asien. 

 Vienna, 1892. A Hungarian edition of this work was published in 1890. 



8 La Mission Lyonnaise d' exploration commerciale en Chine, 1895-97. Lyon . 

 1898, pp. 283-314. 



3 Etude qeoloqique et miniere des provinces Chinoises voisinesdu Tonkin. Annates de8 

 Mines, Vol. XX, 1901, pp. 287-492. 



4 Contribution a V etude qeoloqique de la Chine mcridionale Bull, ftcon. Ind. Chive, Vol. 

 XXXIIL 1898." 



6 The Back Blocks of China, R. Logan Jack, London, 1904. 



e Risnltats de la Mission qeoloqique et miniere du Yunnan meridional. Annates des 

 Mines, Vol. XI, 1907, pp. 298-503. 



