. Guide leaflet. Post-glacial sand and gravel (a tributary delta deposit) overlying varviLake Hudson, Hornbeckers sand-pit, West Ilaverstraw, New York. il glacial clay of 33 34 AMERICAN MUSEUM 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 en

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. Guide leaflet. Post-glacial sand and gravel (a tributary delta deposit) overlying varviLake Hudson, Hornbeckers sand-pit, West Ilaverstraw, New York. il glacial clay of 33 34 AMERICAN MUSEUM 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-

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901