Before Carmen left, she invited them all to breakfast and orientation before the first ride in the morning.
When they were all seated and attentive, she began with the orientation she had been memorizing for the last two weeks.
It stood to the east of the latter, and had a different orientation, viz.
Dark coloured micas are strongly pleochroic. Accurate determinations of the optical orientation, as well as the symmetry of the etching figures on the cleavage planes, seem to suggest that the micas, except muscovite, may be anorthic rather than monoclinic in crystallization.
Orientation of Substituent Groups.-The determination of the relative positions of the substituents in a benzene derivative constitutes an important factor in the general investigation of such compounds.