Dec. I905I PROCEEDINGS S. I. ASS\\ ARTS AND SCIENCES. \? 



small area where it can be observed; but from the observations made 

 by Prof. H. D. Rodg-ers and myself, it is believed to rang^e from be- 

 tween Berg-en point and Shooter's island, south-southwestwardly, to the 

 Freshkill marshes. It is g-enerally covered by soil, drift deposits, and 

 the sand and clay beds. It may be seen at very low tide, on the shore, 

 about southwest of Bergen Point. It is the slaty, micaceous, fissile, 

 red sandstone and shale." 



On p. 294 he mentions "the tracks of birds and animals found on the 

 sandstone in quarrying {in the Connecticut River valley] " and remarks, 

 in a footnote: '*I have seen no tracks on the red sandstone of Rock- 

 land and Richmond counties, but they may very possibly be found 

 there." 



A visit to the locality mentioned by Mr, Mather on the shore at 

 Mariners' Harbor, was made by me in 1889 and described in the P70- 

 ceedings of the Natural Science Associaiio7i of Statcji Island ioK K^xW \ ith 

 of that year. Since then the growth of the communitv has obliterated 

 all traces of the outcrop at that time exposed, but we have specimens 

 from it in our collection. 



Shortly afterwards Triassic shale was found exposed in the railroad 

 cutting just beyond Arlington station, and the discovery was recorded 

 in the Proceedings of (3ct. loth, i8Sg. The same rock is also known to 

 be near the surface at other localities in the vicinity, as evidenced by 

 the fact that it was struck in a well boring at the Elizabethport ferry 

 landing, near Old Place, at a depth of 45 ft., as noted by Mr. Wm. T^ 

 Davis in the Proceedings of June 12th, 1897. 



Bowlders, pebbles, and finer particles of Triassic sandstone and shale 

 are the commonest constituents of our Drift deposits, giving to them 

 the prevailing red color which characterizes most of the surface soil of 

 the Island, but this material was almost entirely derived from the New 

 Jersey outcrops. Some of our finest specimens of glaciated bowlders 

 and pebbles are of this kind of rock. 



The Secretary read the following review of 



Recent Literature Relating to St.vten Island. 



"The Normal Distribution of Chlorine in the Natural Waters of New 

 York and New England." Daniel D. Jackson. U. S. Geol. Snrv., 

 Water-Supply and Irrigation Paper No. 144. Paiuph., 8vo. pp. 31, pis. 

 i-v. Washington, D. C, 1905. 



This contribution deals especially with the normal amount of chlorine 

 in the reservoir, pond, lake, stream, well and spring waters of the region. 



