The rights and duties of science
The rights and duties of science
Letter, 7 August 1865
Letter, 7 August 1865
Letter, 6 July 1858
Letter, 13 July 1868
Letter, 14 July 1868
Letter, 10 July 1868
Letter, 26 July 1868
Letter, 17 August 1868
Letter, 20 August 1868