...Of course, there is always room for improvement, and some ofthe stories published in the May issue were not so hot... 
Various 「Astounding Stories, August, 1931」
... And meanwhile as the business prospered, he became busy with tailors, improving the wardrobe of the company, which was sorely in need of improvement...
Rafael Sabatini 「Scaramouche」
...But the country is prosperous, and capable of great improvement...
David Livingstone 「Missionary Travels and Researches in South Africa」
... All improvement was at an end; there must also, from the nature of the human heart, be oppression...
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
...Was it then a prudent thing for them to rest on this commerce for the further improvement of their property? ...
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
...There was no improvement, but rather a deterioration from the days of Pliny...
Richard F. Burton 「Two Trips to Gorilla Land and the Cataracts of the Congo Volume 2」
...To the slave he had been a true friend, and had labored faithfully for the improvement of his own mind as well as the general elevation of his race...
William Still 「The Underground Railroad」
...The truth of this has been strikingly shown in the marked improvement ofwhite teachers in the South...
Booker T. Washington, et al. 「The Negro Problem」
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