52 PROCEEDINGS OF THE PITTSBURGH MEETING 



Pyritic smelting in the Black Hills. Ibid., vol. xxx, 1900, pp. 764, 1128. 



A new glacial theory. American Geologist, vol. iii, 1889, p. 138. 



The separation of gold from copper, with especial reference to pyritic smelting. 



Colorado Scientific Society, vol. vii, 1901-1904, p. 79. 

 The new geology and vein formation. Ibid., vol. vii, 1901-1904, p. 79. 

 Smeltery fumes and their condensation. Ibid., vol. ix, 1908-?, p. 65. 

 Notes on the geology of the Black Hills and mineral resources of the Black 



Hills (preliminary report). Dakota School of Mines, 1888. 

 Dakota tin mines. Engineering and Mining Journal, vol. xliv, 1887, p. 57. 

 South Dakota. Ibid., vol. liii, 1892, p. 59. 



The dry separation of gold and silver. Ibid., vol. Ixv, 1898, p. 193. 

 Raw sulphide smelting. Ibid., vol. Ixxvi, 1903, pp. 688, 844. 

 Negative results in pyritic smelting. Ibid., vol. Ixxxiv, 1907, p. 939 ; vol. Ixxxv, 



1908, p. 220. 

 Pyritic smelting. Mineral Industry, vol. ix, 1900, p. 694. 

 Progress in pyritic smelting in 1901. Ibid., vol. x, 1901, p. 695. 

 Mine fires. Mining and Scientific Press, vol. xcvi, 1908, p. 679. 

 Tin in the Black Hills, South Dakota. Mining World, vol. xxv, 1906, p. 600. 

 Production of gold and silver in the United States. United States Treasury 



Department : Reports for South Dakota, 1896-1905, inclusive. 



The President then called for reports of committees. 



REPORT OF THE PHOTOGRAPH COMMITTEE 



N. H. Darton, of the Committee on Photographs, reported as follows : 



During the past year there has been no change in the collection of photo- 

 graphs belonging to the Society. No new material has been offered and only a 

 few prints have been ordered. It is packed in a chest, which has been re- 

 cently moved to my new ofiice in the Bureau of Mines, on the northeast corner 

 of G and 8th streets northwest, Washington, D. C. It is conveniently arranged 

 for inspection at any time while I am in the city and prints can be furnished 

 at reasonable rates from negatives in the Geological Survey. A complete cata- 

 logue and index of the collection was published several years ago^ as a bulletin 

 of the Society. 



REPORT OF GEOLOGICAL NOMENCLATURE COMMITTEE 



For the Committee on Geological Nomenclature, Arthur Keith, as 

 secretary, stated that no calls had been made upon the committee during 

 the year and that it had held no meetings. 



AMENDMENT TO THE B7-LAWa 



The Secretary then, by instruction of Council, offered the following 

 amendment to paragraph 1, chapter 1, of the By-Laws, three months' 

 notice of the submission of the amendment having been given in print in 



'Vol. 13, 1902, pp. 377-474. 



