86 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 58 



FRANCE (Continued) 



500. BURTHE, M. P. L. Note sur les travaux de recherche executes a Meymac, 



(S. France). 



Ann. Mines, ser. 9, Vol. 12, 1897, Paris, pp. 5-31. 

 Extract: Zeitschr. prakt. Geol., 1897, Berlin, pp. 418-420. 



Deposit not important from commercial standpoint, but, geologically, has attracted 

 attention because of peculiarities. The deposit is described in detail. 



501. COTTA, BERNARD VON. A treatise on ore deposits. 



Translated by F. Prime, Jr., 1870, New York, pp. 380-384. 

 Treats of tin deposits of Brittany. 



502. CRESSAC, C. DE. Die Entdeckung des Zinns in Frankreich. 



Gee. Nat Freunde Berlin Mag. neust. entd. ges. Nat., Vol. 4, 1810, Borlin, 

 pp. 239-240. 



503. CRESSAC, C. DE. Notice sur la dScouverte de retain en France. 



Journ. Mines, No. 198, Vol. 33, 1813, Paris, pp. 435-452. 



(1) Reconnaissance et indication d'un second gisement d'f-tain dans le departement 

 de la Haute-Vienne. 



(2) Tradnction littrale de 1'indication du gisement d'etain reconnu par le mineur 

 saxon Schnor de Schn6eberg. 



(3) Reconnaissance et indication d'un troisieme gisement dY-tain dans le dt'parte- 

 ment de la Haute-Vienne. 



D , C. H. See No. 1386. 

 D'AcHiARDi, ANTONIO. See No. 1313. 



504. DAUBREE, AUGUSTE. Note sur le kaolin de La Lizolle et d'Echassieres, 



departement de 1'Allier, et sur 1'existence de mineral d'etain qui y a 

 6te" exploite & une gpoque extremement reculee. 



C. R. Acad. Sci., Vol. 68, 1869, Paris, 'pp. 1135-1139. 



. See Nos. 1314 and 1316. 



DAVIES, D. C. See No. 1317. 



505. DAVY, L. Sur 1'anciennete probable de 1'exploitation de 1'etain, en 



Bretagne. 



C. R. Acad. Sci., Vol. 125, 1897, Paris, pp. 337-339. 



Abstract: LCbesconte, P., Bull. Soc. sci. med. Quest, Vol. 7, 1896, Rennes, pp. 

 ,51-53. 



Found slag with small grains of crystalline tin near old excavations. Con- 

 sidered to be product of ancient smelting. Found veins near by containing tin. 

 Veins cut upper Silurian metamorphic rocks. They consist of quartz with musco- 

 vite, cassiterite, tourmaline, etc. Cassiterite where vein is most micaceous. Thinks 

 work was done by Gauls before Roman conquest. Location: between Abbaretz 

 and Vay in Lower Loire. 



506. DUFRENOY, P. A. Sur le plateau central de la France, et particuliere- 



ment sur les terrains secondaires qui recouvrent les pentes meridio- 

 nales du massif primitif qui le compose. 



Ann. Mines, ser. 2, Vol. 3, 1828, Paris, pp. 55-57. 



Short account of the occuirence of tin in granite and gneiss in France. 



