Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16783
Fall migration at the Washington Monument
Mortality of migrating birds due to lighting of the Monument at night.
Authors
C.S. Robbins
Effects on forest birds of DDT used for gypsy moth control in Pennsylvania
1. Systematic censuses of the birds on three 40-acre tracts of forest near Scranton, Lackawanna County, Pennsylvania, were made between May 1 and June 27, 1945, to determine the breeding populations....2. Between May 24 and June 1 a 600-acre area enclosing the first (Mile Square) was sprayed by airplane with DDT in oil solution at 5 pounds per acre. On June 9 a 350-acre area enclosing the second t
Authors
N. Hotchkiss, R.H. Pough