The various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (John Murray, 1877)

The various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (J. Murray, 1904)

The various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (Appleton, 1877)

Various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (Appleton, 1892)

The various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (J. Murray, 1899)

The various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (John Murray, 1890)

The various contrivances by which orchids are fertilized by insects - Darwin, Charles, 1809 -1882 (D. Appleton and Co, 1877)

The various contrivances by which orchids are fertilized by insects - Darwin, Charles, 1809 -1882 (D. Appleton and Co, 1895)