...The German canary fanciersturned their attention to developing the song of the bird, the Belgianand British fanciers to making and perfecting shape and color varieties... 
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」
...It announces the desire of theSovereign to build a small observatory in the park at Greenwich, ‘inorder to the finding out of the longitude for perfecting the art ofnavigation and astronomy...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
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