Very rare collection of articles on Bickerton's Partial Impact and Selective Molecular Escape theories. Originally published in the Lyttelton Times, they are collected here with with his Reply to Critics and the previously unpublished The Phenomena of Cosmic Impact.
Whitcombe and Tombs Ltd. with Bickerton Brothers, Christchurch, 1892, 1895, 1896. Hardback with no dust jacket. 87+20+16+22 +vi pages. SECONDHAND