Letters, 1868
Letters, 1868
Notebooks of chemical lectures, 1869-1870
Lecture and laboratory notebooks, 1869-1870
Notebooks, 1869-1870
Pocket notebooks, 1869-1871, 1882
Diaries, 1869-1871, 1872
Letters, 1869
Letters, 1869
Pocket diaries, 1869-1872
Scientific correspondence, 1869-1889
Scientific correspondence, 1869-1889
Natural history notebook, volume I, 1870-1871