Vol 31-40

Issue	Pages	Title	Authors

40
No records
3 4	173-191	Apparent ages of Norwegian minerals and rocks.	Henrich Neumann	View
39
No records
1	87-89	Notiser - Notes. En magnetitforekomst på Munkholmen ved Trondheim. An occurrence of magnetite at Munkholmen near Trondheim.	Fredrik Chr. Wolff	View