Their influence upon the young tsar was profoundly beneficial, and the period of their administration coincides with the most glorious period of Ivan's reign - the period of the conquest of Kazan and Astrakhan.
The blastopore now closes along the middle part of its course, which coincides z s FIG.
This limits the accuracy of the result; and we can therefore replace the figure by another figure which coincides with it approximately, provided that the further inaccuracy so introduced is comparable with the original inaccuracies of measurement.
Take rectangular axes, of which Oz coincides with the axis of rotation.
Its northern limit nearly coincides with that of successful wheat cultivation.