66 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 58 



ENGLAND (Continued) 



341. BLAKE, WM. P. The Dolcoath tin mine, Cornwall. 



Eng. Mg. Journ., Vol. 54, 1892, New York, p. 414. 



Reprint, Sci. Amer. Suppl., Vol. 34, 1892, New York, pp. 14082-14083. Short 

 general article. 



342. BOASE, G. C., and COURTNEY, W. P. Bibliotheca Cornubiensis, 3 vols. 



1874-1882, London. 



Contains a large number of references to Cornwall and Devonshire tin mines, 

 to their geology, customs, laws, history, etc. 



343. BOASE, HENRY S. On the tin-ore of Botallack and Levant. 



Trans. Roy. Geol. Soc. Cornwall, Vol. 2, 1822, Penzance, .pp. 383-403. 



Examination of the tin-ore found in some of the St. Just mines; method of dress- 

 ing it preparatory to smelting; explanation of method of separating the tin and 

 copper from ores of these mines; the result of some experiments on the ore by 

 which it was hoped to find an improved process for separating the copper. 



344. . Contributions towards a knowledge of the geology of Cornwall. 



Trans. Roy. Geol. Soc. Cornwall, Vol. 4, 1838, Penzance, pp. 166-474, pis. 3, 4. 



Description of the geology of Cornwall, with " numerous innovations," and 

 deductions with which author has endeavored to disprove some accepted geological 

 doctrines. The tin veins of Cornwall treated. 



345. BONNARD, A. H. Note sur le gisement, 1'exploitation et le traitement de 



retain dans le Duche-de Cornouailles. 



Journ. Mines, No. 84, Vol. 14, 1803, Paris, pp. 443-454. 



" The author more particularly describes Polgooth mine, Carclaze mine and Pen- 

 towan stream work, near St. Austell, from personal observations." 



346. BORLASE, WM. COPELAND. Natural history of Cornwall. 



1758, Oxford. 



Not available to the authors. 



. See Nos. 1381, 1382, and 1383. 



347. BORLASE, REV. WM. COPELAND, and ROSEWARNE, H. Extract of letters 



giving an account of a specimen of native tin found in Cornwall. 



Philos. Trans. Roy. Soc. London, Vol. 12, 1769, London, p. 597-598. 



BROWN, A. SELWYN. See No. 1308. 



348. BRUNNICH, MORTEN THRAXE. Beschreibung zweyer Zinnerze. 



Ron. Schwed. Akad. Wiss. Abh. Nat. Haush. Mech., Vol. 40, 1778 (Pub. 1783), 

 Leipzig, pp. 307-310. 

 Treats of tin ores of Cornwall. 



349. BULLER, JOHN. An account of the Parish of St. Just. 



1842, Penzance. , 



Not available to the authors. 



BURNARD, ROBERT. See No. 1384. 



350. Busz, K. Mittheilungen iiber den Granit des Dartmoor Forest in Devon- 



shire, England, und einige seiner Contactgesteine. 



Neues Jahrb. Min., Beilage-Band 13, 1899, Stuttgart, pp. 90-139, pi. 1, fig. 1. 

 Page 100: Hornfels consists of light colored mica, quartz and tourmaline. Innumer- 

 able grains of cassiterite occur through it. Isolated by HF and metallic tin 

 obtained. Describes also a garnet-datolite hornfels and a hedenbergite hornfels with 

 accessory garnet, datolite, axinite, and quartz. 



