. Guide leaflet. Skull of horse, Equus caballus, found attop of the post-glacial sand. Subway ex-cavation 134th Street and St. NicholasAvenue, New York City. been washed down in post-Co-lumbian time from the hillsidebelow the site of the College ofthe City of New York. In the excavation for the NewYork Telephone building at Bar-clay, Vesey, and Washingtonstreets, New York, bed-rock(Manhattan schist) was encount-ered seventy-five feet below hightide on the Hudson River sideand sixty-five feet on the easternside. Between the bed-rock andthe surface, stratified gray andred sands were noticed with
. Guide leaflet. Skull of horse, Equus caballus, found attop of the post-glacial sand. Subway ex-cavation 134th Street and St. NicholasAvenue, New York City. been washed down in post-Co-lumbian time from the hillsidebelow the site of the College ofthe City of New York. In the excavation for the NewYork Telephone building at Bar-clay, Vesey, and Washingtonstreets, New York, bed-rock(Manhattan schist) was encount-ered seventy-five feet below hightide on the Hudson River sideand sixty-five feet on the easternside. Between the bed-rock andthe surface, stratified gray andred sands were noticed withoccasional pockets of pebblesand a few ice-transported bowl-ders. At a depth of 45 feet be-. st miilicd post-glacial sands west bank of Subway excavation 134th Street and Avenue, New York City, Skeleton of horse, Equus nihuiliis. probably 300years old, found at elevation marked X. GEOLOGY OF NEW YORK CITY AND VICINITY 35 low high tide, a bed of peat eighteen inches in thickness was observedby the writer, interbedded in the coarse sand, and associated with itthe prostrate trunks of several juniper trees, Juniperus communis,some ten feet in length. The bark and a number of the branches stilladhered, indicating that the trees and peat had grown in situ. Hollick1 of the New York Botanical Garden examined a cross-section of the trunk of one of the trees and counted some two hundredrings representing as many years for its growth. These objects indicatethat during their period of development the sands containing them wereat sea level. The present position indicates later subsidence of the stratified beds of sand and gravel which rest upon the varvedc
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901
