59 



>t Hocks on Border of the Trias near the Iron Mines of 



Pennsylvania. A. Phil. Soc. Pro., xxi, p 458. Discussed by P. 



Frazer. 

 The Eozoic Ruck- of North America (.Abstract), (icol. Ency., i (third 



scries), p. 506 ; Canadian Rcc. Sci . i, p. 82; B. A. R., p. 727. 

 The Genesis of Crystalline Rocks. Am. Nat., xviii, p. 605. Abstract 



of paper read to Nat. Acad. Sci., April 15. 



1886. 



Bioirraphical Notice of Prof. Benjamin Silliman. I. M. E., xiii, p. 782. 



Remark> ..n Natural Gas in Canada. I. M. E., xiii, p. 783. 



An Electrical Furnace for Reducing Refractory Ores. I. M. E., xiv, 

 p. 492. 



on the Apatite Region of Canada. I. M. E., xiv, p. 495; P. A. A. 

 A., xxxiv, p. 199. 



<;-.logy (Progress of, for 1883). Smithsonian Report for 1883, p. 443, 

 1885. 



Lrs Divisions du systeme Eozoique de I'Amerique de Nord. Soc. 

 Geol. Belgique Annales, xii. p. 3. 



The Geology of the Scottish Highlands. Science, v, p. 87. 



An Historical Account of the Taconic Question in Geology, with a 

 Discussion of the Relations of the Taconic Series to the Older Crys- 

 talline and to the Cambrian Rocks Second Part. Can. Royal Soc. 

 Trans., ii, sec. 4, p. 125 ; abstract, Science, iii, p. 675. Reprinted 

 in M. I*. A: P.. ( heinistry of Sea and Land, and Youth's ( Otnpanion, 

 .lune. 



1886. 



Apatite Deposits in Lawrentian Rocks. Abstract, P. A. A., xxxiv. 

 p. 199. 



A Natural System of Mineralogy with a Classification of Native 

 Silicates. Can. Royal Boc. Trans., iii (8), p. 25; s. .1. S., xxxii, 

 p. 410. Reprinted in M. P. & P. 



:al Physiology and Physiography, A Second Series of Chemical 

 and theological E>says, xvii. 71<> pages, Boston. Review Am. 

 Geol., viii. p. lio. 



\patite Region of Canada. 1 M. K... \iv.p.495; Cana- 

 dian i. p. 65. 



1887. 



;irks on llo.kinir Vallry District I M R., \\. p 754. 

 Further Note- on the H \ drometalliirny of Topper I M. K . \vi. p. 80. 



Mag-, third decade, iv. p. 498; ab- 



A M .1 \x\i\. p ',":'.' N.mire. \x\\i. p . r >74 ; 1', \.R.. 

 1887, p. 704. 



GftStaldi <>n Italian ' ' talline Rocks <,.,, I N 1 



thir iv. p. 531 ; al>s'- Id P. L H p. 703. 



