The right-rotating and left-rotating pure modifications of campheroxime and their mixtures were studied; among the latter, there is an inactive modification that does not rotate the plane of polarization.

This note is the result of a study of the general nature of the primary gold deposit in the summer of 1911 at the mines of the South Siberian Gold Mining Partnership, located on the Laila River, in the Kuludzhunsky volost of the Ust-Kamenogorsk district. The mining area occupies 22 square versts. From it, small tours were made in different directions, mainly to the nearby granite Kaindinskii forest, and thus the entire examined area is approximately 100 square versts. The genesis of the gold-bearing quartz veins is clarified. Their appearance is probably associated with the intrusion of granites. The veins filling the cracks, consistent with the strike of rocks and caused by primary dynamic processes, were formed as a result of thermal activity (see the article).