1
Published 1906
Journal / Magazine Electronic
3
Book Electronic
4
Published 1870
Book Electronic
6
by Bacon, Roger, 1214?-1294.
Published 1911
Book Electronic
8
Published 1903
Book Electronic
10
Published 1904
Book Electronic
13
by Carbonelli, Giovanni, 1859-
Published 1914
Book Electronic
14
Published 1886
Book Electronic
15
by Hagen, Johann G., 1847-1930.
Published 1896
Book Electronic
17
Published 1897
Book Electronic
19
by Mayor, John E. B. 1825-1910.
Published 1875
Book Electronic
20
Book Electronic