Letters, 1856-1857
Letters, 1856-1857
Letters, 1858
Letters, 1858
Letters, 1859
Letters, 1859
Letters, 1860
Letters, 1860
Juvenalia, 1860-1861
Diaries, 1861 and 1865
Letters, 1865
Letters, 1865
Letters, 1868
Letters, 1868
Letters, 1869
Letters, 1869
Notebooks of chemical lectures, 1869-1870