80 Geology of Hudson County, New Jersey. 



Distribution op the Population in 1875. 



On uplands, east of Bergen Hill, . . . . 66,000 



" marsh, " " - - - . 33,000 



" summit and western slope of Bergen Hill, - - 67,000 



" uplands, west of Bergen Hill, - - - - 7,000 



Population of entire County, . - - . 163,000 



Population living on trap estimated as follows : 

 On Bergen ISTeck, . . _ . 



In Jersey City, 

 In northern portion of County, 



On Triassic sandstone (west of Bergen Hill), 

 On drift, seolean sand, etc., in Jersey City, 



" " " in Hoboken, 



" marsh in Jersey City (35 acres), 



" " Hoboken (140 acres). 



The mean range of the tide in the waters of Hudson County is as 

 follows : — 



New York Harbor, - ... _ . 4.4 feet. 



Newark Bay, - - - - - 4. 8 feet. 



Passaic River, at Newark, - - - - 5.0 feet. 



6,000 





44,000 





15,000 







65,000 





- 



7,000 



- 



55,000 



- 



11,000 



- 



9,000 



. 



14,000 



