en pleno auge

= in full cry, at its height

Ex. During the 1st period, 1895-1912, American liberalism was in full cry, the basic idea being to improve the level of knowledge among the masses and thus aid the development of society.

Ex. At its height in 1929 the stock, circulation and readers were only slightly fewer than those of the secular public libraries.

* * *

= in full cry, at its height

Ex: During the 1st period, 1895-1912, American liberalism was in full cry, the basic idea being to improve the level of knowledge among the masses and thus aid the development of society.

Ex: At its height in 1929 the stock, circulation and readers were only slightly fewer than those of the secular public libraries.