21
Published 1806

22
Published 1878

23
Published 1857

24
Published 1858

25
Published 1902

26
Published 1903

27
Published 1867

28
Published 1866

29
Published 1906

30
Published 1907

31
Published 1839

32
Published 1835

33
Published 1836

34
Published 1860

37
Published 1843

38
Published 1900

39
by Rathenau, Fritz
Published 1904

40
Published 1906