A note on Bekke's method for comparing the refractive index values of neighboring mineral grains in thin sections
1912 A. N. Zavaritskii
The mysticism of the Feuerbach circle (Circulus mysticus Feuerbachi)
1912 E. S. Fedorov
Same-sex hyperboloids and generalization of their concept using the example of the conoprim system
1912 E. S. Fedorov
Barite from Zigazinskaya dacha (Southern Urals)
1912 A. N. Zavaritskii
Crystallization of some similar organic cobaltammines
1912 D. N. Artem'ev
Essay on the geological formations of the Udelnaya steppe of the Stavropol province
1912 K. A. Prokopov