Vol 21-30

Issue	Pages	Title	Authors

(1)
No records
	1-4	On "Apoanalcite" and hydronephelite	Christoffer Oftedahl	View
234(1)
No records
2 3 4	226-244	Notiser. Notes.	Egil Sæther Henrich Neumann Ivar Oftedal Trygve Strand H. H. Smith Christoffer Oftedahl Gunnar Henningsmoen	View
12(2)
No records
1 2	143-144	Notiser - Notes. Et funn av laumontit i augitmelafyr ved Horten	Christoffer Oftedahl	View
1 2	75-78	High temperature optics in plagioclases of the Oslo Region.	Christoffer Oftedahl	View
34(2)
No records
3 4	158-162	Baveno-pericline-albite combination twins in "big-feldspar basalt", Horten, the Oslo region.	Christoffer Oftedahl	View
3 4	215-218	Apoanacite, a new mineral.	Christoffer Oftedahl	View
4(1)
No records
4	193-201	En presset norit ved Sulseter, N. Fron	Christoffer Oftedahl	View