Julius Fröbel
Carl Ferdinand Julius Fröbel (16 July 1805 – 7 November 1893) was a German geologist and mineralogist, journalist, and democratic revolutionary already during the ''Vormärz'' era. He was active in Germany, Switzerland, the United States and South America at different times in his life.
Provided by Wikipedia
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
