1896.] FAIRCHILD AXn RARXUM PINNACLE PEAT MARSH. 20I 



Prof. Ward's paper, three sej^arate determinations being made. 



ist. Of the portion soluble in HCl. 



2nd. Of the portion insoluble in HCl. 



3rd. Of the metallic portion separated from the mass by the 

 magnet. 



From these analyses that of the entire mass was calculated. 



The percentage of nickel (ro.05) in the metallic portion is above 

 the average. 



Soluble in HCl. 

 31.68 



Entire Mass. 

 (computed.) 



Insol. in HCl. Metallic. 



SiO, 36 . 24 



Fe 1 3 • 00 



Fe^ O3 1 8 . 04 



A1,0,; 3-34 



Ni. .. 



0.36 



2.13 



Co 0.12 



CaO 2.35 



MgO 22.54 



S 1.53 



Na, O o. 34 



K,0 o.oi 



100. 



Less O. for S. 



7 • 35 



45-32 

 1 .63 

 o. 10 

 2.00 

 o. 17 

 1.68 



41.58 

 o. ig 



100,02 

 . 10 



51 



99 



79 



08 



(P.) 



16.53 



87.22 



O. 12 



10.05 



0.46 



1.56 



99.41 



99.92 



Rochester, N. Y., Jany., 1894. 



The following paper was read by Mr. E. G. Barnum : 



THE PINNACLE PEAT MARSH. 



By H. L. Fairchild and E. G. Barnum. 



Within the limits of the city of Rochester is an interesting peat 

 marsh apparently in a state of nature, and covered with a forest 

 growth which may be primeval. It occupies one of the numerous 

 depressions or basins found in the Pinnacle hills, and is situated about 

 forty rods east of the South Goodman street extension through the 

 ridge. In shape it is oblong or oval with its longer diameter east and 

 west. Its dimensions are about three hundred feet east and west by 



