Keywords: Scaffold for heliotrope.jpg en Simpson and his perch Scaffold for heliotrope at Station Stoville 35 feet to top of cutoff maple tree Station built in 6 hours NOAA's http //www photolib noaa gov/cgs/index html Historic C GS Coast and Geodetic Survey Collection Image ID http //www photolib noaa gov/htmls/cgs00691 htm cgs00691 http //www noaa gov/ US National Oceanic and Atmospheric Administration 1904-11 PD-USGov equalized improved contrast adjusted levels Heliotrope Retouched images by User Waldir |