392 PROCEEDINGS OF OTTAWA MEETING. 



The Hydro-metallurgy of Copper and its Separation from the precious Metals: 



Trans. Am. Inst. Min. Engineers, vol. x, 1881, pp. 11-25. 

 Review ofthe Progress of Geology : Smithsonian Report, L882. 

 The Relations of the natural Sciences: Canadian Naturalist, vol. x, L882, pp. 257- 



264; see also Trans. Roy. Soc. Canada, vol. i, sec. iii, L882, p. 1. 

 Celestial Chemistry from the Time of Newton: Proc. Cambridge [Eng.~\ Philos. Sue., 



Issi ; and reprinted in Am. .lour. Sri., vol. xxiii, 1882, pp. L23-133. 

 Progress of Geology : Smithsonian Report, 1883. 

 The Geology of Port Henry, New York (abstract): Canadian Naturalist, vol. x, 



1883, pp. 420-422. 

 Coal and Iron in Alabama : Trans. Am. Inst. Min. Engineers, vol. xi, 1883, pp. 236-248. 

 The decay of Rocks geologically considered (read before the National Academy of 



Sciences, Washington, April 17, 1883): Am. Jour. Sri., vol. xxvi, 1883, pp. 



1K0-213. 

 The Geological History of Serpentines, including Studies of pre-Cambrian Rocks : 



Trait*. Roy. Soc. Canada, vol. i, sec. iv, 1883. 

 The Taconic Question in Geology: Trans. Roy. Soc. Canada, vol. i, sec. iv, 1883. 



The two last papers are reviewed in Am. Jour. Sci., vol. xxvii, 1884, pp. 



481), 490. 

 On the Origin of the crystalline Rocks: American Naturalist, June, 1884; see also 



Canadian Record of Sci., vol. i, 1884, pp. 75-77; -1//*. Jour. Sci., July, 1884, and 



Nature, July 3, 1884, p. 227. 

 The apatite Deposits of Canada: Canadian Record of Sci., vol. i, 1884, pp. 65-75; 



also 'Trans. Am. Inst. Min. Engineers, vol. xii, 1884, pp. 459-468. 

 The Cambrian Rocks of North America (abstract) : Canadian Record of Sci., vol. i, 



L884, pp. 77-81. 

 The Eozoic Rocks of North America (abstract) : Canadian Record of Sci., vol. i, 



L884, pp. 82-88. 

 The Origin of crystalline Rocks: Trans. Roy. Soc. Canada, vol. ii, sec. iii, 1884, 



p. 1 ; see also abstract in Am. Jour. Sci., vol. xxvii, 1884, pp. 72-74. 

 An historical Account of the Taconic Question in Geology, with a Discussion of 



the. Relations of the Taconic Series to the older crystalline and to the Cam- 

 brian Rock: Trans. Roy. Soc Canada, vol. ii, sec. iii, 1884, p. 125. 

 Observations sur les roches magnesiennes du groupe de la riviere Hudson, que M. 



Logan a dec-rites dans la seance # du 7 mai 1885, p. 104: Bull, de la Soc. Geol. de 



France, 2e ser., tome xii, 2 e part, 1885, pp. 1029-1032. 

 The Classification of natural Silicates (abstract): Canadian Record of /Sci., vol. i, 



1885, pp. 1-".) L35 and 244-247. 

 The < reognosy of crystalline Rocks (abstract) : ( 'anadian Jocord of Sci., vol. i, 1885, 



pp. 147, I4s. 

 Biographical Notice of Benjamin Silliman: Trans. Am. Inst. Min. Engineers, vol. 



xiii, 1885. pp. 782-785. 

 An electrical Furnace for Reducing refractory Ores: Trans. Am. Inst. Min. Engi- 

 neers, vol. xiv, L885, pp. V.V2 -495. 

 Note on the apatite Region of Canada: Trans. Am. Inst. Min. Engineers, vol. xiv. 



L885, pp. 495, 496. 

 ( )n a natural System in Mineralogy, \\ ith a Classification of native silicates : Trans. 



Roy. Soc. Canada, vol. iii, sec. iii, 1885, |>. 25. Abstracts printed in American 



Naturalist, .Inly, L885, and ('anadian Record of JSci. , vol. i, L885, pp. 129 and 244, 



and also extract in Canadian Record of Sci. , vol. ii, 1886, pp. 1X6-1X9. 



