Sidewalk Excavation for Tree Planting at the Henry Clay Frick House, 1913.

Henry Clay Frick commissioned the Beaux Arts masters Carrère & Hastings to design a residence for both his family and his art collection at the site of the former Lenox Library. Looking to create shade along 70th and 71st Streets, Frick had the sidewalk excavated to six feet in depth to install European horse-chestnut trees, which have dense canopies and shallow roots. Each of the trees was carefully selected and brought over on a special train from Germantown, PA, and fertile soil was trucked in from Long Island. Despite the care and attention of Frick’s gardeners, all the trees died less than a year later. The culprit? Illuminating gas was found seeping into the soil from faulty pipe connections from the mansion.