...A broad knife, from twelve to eighteen inchesin length, is first inserted at the left side, and the women, whoare generally the operators, introduce onehand to scoop out the blood, which oozes slowly... 
J. Emerson Tennent 「Sketches of the Natural History of Ceylon」
...Some especially skilled operators may also secureconsiderably better average results than this...
Harry M. Lamon 「Ducks and Geese」
...It wasclearly what would be called, on Wall street, a"brokers' war," in which, when the operators arepreying on each other, outsiders are safe...
W. E. Webb 「Buffalo Land」
...The common method of using the solution of blue vitriol is to pour itfrom a bottle with a quill in the cork, into the foot, when the animallies on its back between the operators, as already described...
Robert Jennings 「Sheep, Swine, and Poultry」
...If our operators could manage to produce good pictures in this way theywould put money in their pockets, as many who cannot find time duringthe day would resort to their rooms at night...
Henry H. Snelling 「The History and Practice of the Art of Photography」
...In speaking of the above,reference is had to baths to the ordinary heights used by operators...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...I would like to seesome of our enterprising operators investigate this combination...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...In almost all the early specimens of the Daguerreotype,extremes of light and shade presented themselves, much to the annoyance ofthe early operators, and seriously objectionable were such portraits...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...“However, keep all the searchlight operators busy, going over very bit of the country within the reach of their beams...
Various 「Astounding Stories of Super-Science January 1931」
...This towerbroadcaster could only reach the local area, yet ships and landvehicles with Robot operators would doubtless pick it up and relay itfurther...
Various 「Astounding Stories, June, 1931」
...And on the ships, theairliners and the land vehicles, the Robot operators stirred to suddenfrenzy would run amuck...
Various 「Astounding Stories, June, 1931」
...Perhaps there were natural storm tendencies here; perhapsthe operators of the control station were unduly eager, manipulatingthe rotation too suddenly...
Raymond King Cummings 「Wandl the Invader」
..."No, thanks to our ray operators...
Sterner St. Paul Meek 「The Solar Magnet」
...Every day at noon a signal is sent to various parts of thecountry by telegraph, so that all operators and railway men who hearthat signal can set their clock at noon within two or three seconds...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
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