DouglasA
no edit summary
23:51
-9
WesleyS
recat, cleaning up 'chemistry' cat
16:37
-25
Deborah
18:30
+39
00:10
+34
New page: '''Basil Valentine''', was a German alchemist of the 15th century, he is said to have been a Benedictine monk at Erfurt, and is reckoned the father of analytical chemistry.<ref...
19:31
+294