It took three and one-half thousand years of continual experimenting on this delicate creation before it was pronounced satisfactory.
The other animals are glad, for she was always experimenting with them and bothering them; and I am glad, because the snake talks, and this enables me to get a rest.
Everything is duly tested and proved to be a success by a corps of experts before it is given to the practicing fraternity. The government holds certain rights in experimenting that no physician or medical school would think of having in our world.
"The first time I saw Lord Kelvin, he came to my laboratory at Menlo Park in 1876." (He reported most favorably on Edison's automatic telegraph system at the Philadelphia Exposition of 1876.) "I was then experimenting with sending eight messages simultaneously over a wire by means of synchronizing tuning-forks.
One of the most conspicuous features of the room is a phonograph equipment on which the latest and best productions by the greatest singers and musicians can always be heard, but which Edison himself is everlastingly experimenting with, under the incurable delusion that this domestic retreat is but an extension of his laboratory.