Hydroseeding, application pattern, size shown with respect to pencil.Great Smoky Mountains National ParkHydroseeding tree seeds, Route 15, May 1, 1964. Photos part of report on this demonstration: Typical application pattern, as seen on the ground: Globs measure 2-4 inches in diameter, averaging approximately one foot separation at the particular speed the slurry was applied. The black and white photo shows scale with respect to pencil.Hydroseeding, II-R-Maint-6509, Physical Facilities - Roads - Maintenance of Roads