B. B. CHAMBERLIN. 



Pagb» 



The Minerals of the Weehawken Tunnel, (February 12, 1883).. . 88 



N. H. DARTON. 



On the Disintegrated Sandstone at New Durham,*N. J., (April 30, 



1883) ' 117 



ROMYN HITCHCOCK. 



The Reticulate Structure of Living Matter, Bioplasson, (February 



5.1883) 79 



HORACE C. HOVEY. 



Subterranean Scenery, (Lecture, November 20, 1882) 36 



ALEXIS A. JULIEN. 



The Genesis of the Cr}'stalline Iron Ores, (October 16, 1882). . , 6 

 The Decay of the Building Stones of New York City, Part L, 



(January 29, 1 883) 67 



On the Decay of Building Stone, Part IL, (April 30, 1883) 120 



On a Form of Graphite found at Ticonderoga, N. Y., (May 14, 



1883) 148 



GEORGE F. N. KUNZ. 



On a Large Mass of Cretaceous Amber from'Gloucester County. 



New Jersey, (February 5, 1883) 85 



WILLIAM L. LAY. 



On the Deposits of Earth-Wax (Ozokerite) in Europe and 



America, (December 4, 1882) 43 



ALBERT R. LEEDS. 



Five New Organic Compounds, viz.: — CEnantholaniline, CEnan- 

 tholxylidine, OLnantholnapthylamine, Cryptidine, and Acro- 

 leinureide, (January 8, 1883) 62 



An Actinic Method for the Determination of Organic Matter in 



Potable Water, (April 9, 1883) 11 1 



DANIEL S. MARTIN. 



A New Eurypteiid from the Catskill Group, (October 1 6, 



1882) 8. 



JOHN S. NEWBERRY. 



On the Origin of Crystalline Iron Ores, (October 23, 1882) 13 



Notes on the Botany, Geology, and Resources of Southern Texas 



and Chihuahua, (January 22, 1883) 66 



The Botany and Geology of the Country Bordering the Rio 



Grande, in Texas and Chihuahua, (February 12, 1883) 9a 



