57 



Table of Geological Formations, p. 51 ; Eozoic, p. 10, arid Dominion of 

 Canada, pp. 52-55, in Mu< t-trlum-'s . \nier. Geological Railway Guide. 



Remarks on the Position of Copper-bearing Rocks of Lake Superior 

 and Pennsylvania. I. M. K., vii. p. 333. 



On the Origin of Clays on the Atlantic Seaboard. I. M. E., vi, p. 188. 



1880. 



The Chemical and Geological Relations of the Atmosphere. S. ,1., xix, 

 pp. 349-363. Reprinted in M. P. & P. 



On the Recent Formation of Quartz and on Silification in California. 

 8. J., xii, p. 371 ; C. E., ix, pp. 435, 1881. 



The Genesis of Certain Iron Ores. Science (edited by Michels), i. p. 

 201 ; also read to A. A. A. S., 1880. 



Letters and Notes on the Iron hearing and Associated Rocks of the 

 Marquette Region, and Comparisons with the Archean of Canada 

 and of the Eastern United States (with comments by T. B. Brooks). 

 Geology of Wisconsin Survey of 1873-79, vii, 1880. 



Des terrains pre"-Cainbriens dans I'Ame'rique du Nord. Congres Geol. 

 International Compte Renda, Session of 1878, pp. 229-232, 1880. 



Sur les limites du terrain Cambrian. Congres Ge"ol. Inter. C. R., Ses- 

 sion 1878, p. 99, 1880. 



On the Origin of Anthracite (abstract), Science, i, p. 303. Read to 

 National Acad. of Sri. 



1881. 



HiMorieal X..tes on Cosmic Physiology. P. A. A., xxx. p. 48. 

 TheTaconir System in Geology. C. N. (new series . ix, p. 4'.2l( abstract) ; 



abstract. Am. Nat.. x\. p. 4Ht. K-ad Nat. Acad. Sci., 1880. 

 Remarks on Pre. -Cambrian Rocks of Great Britain. Bos. Soc. Nat. 



Hit, xx, pp. 104-141. 

 The Hy.lronietallurgy of Copper and its Separation from the Precious 



lit, I. M B., x, pp. 11-25. 

 Nature in Thought and Language. Lou.. Kdin. and Dub. Phil. Mag., 



1881. Reprinted in M. I'. A- I' 



1882. 



Address of Welconv-. A . A \ S. Montreal C. Meetimr. \\\i. p. r,i:{. 

 arks and Notices. A L. A. 8 Montreal C. M \x.\i. pp. 



618-639. 



The F.o/njf \>. iihiTM Knropr. The Serpentine^ 



I' A A . \xxi. 



i.-ii Chemistry (ton the Tim.- of Newton. Pioo, I'hii s... 



; \'.\:\ Krprinird , M | A I 1 

 Th. Ki-hitinii of the Naiur. \ddress be: 



anada. 0.1 I ience 



166. 



