...Therefining and perfecting of all these types has been the work of fanciersin Holland, Belgium, England, and America in modern times... 
John H. Robinson 「Our Domestic Birds」
...It is in thefacility of opening these hives at pleasure that all the advantages lie,which I expect in perfecting the economical knowledge of bees...
Francis Huber Anonymous 「New observations on the natural history of bees」
...This is not a matter for teaching, arttraining being only concerned with perfecting the means of itsexpression...
Harold Speed 「The Practice and Science Of Drawing」
...Itsessence is riches, its activity is giving and perfecting, and whileit is a delight to the highest, it is also a boon to those beneath them...
Anthony M. Ludovici 「Nietzsche and Art」
...“We were two hundred years building and perfecting this,” the other told him...
Various 「Astounding Stories of Super-Science January 1931」
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