...This time three of the eggs werehatched, and as the mother hawk sprang up,either by accident or intentionally she threwtwo of the young hawks some feet from the nest... 
John Burroughs 「Bird Stories from Burroughs」
...Similar burnings, I discovered,had occurred both intentionally and accidently in past years atirregular intervals...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...Besides, it must not be thought that the East neglected the frontier intentionally simply because the Tidewater people could not early subdue the wilderness...
Various 「The Journal of Negro History, Vol. I. Jan. 1916」
...Feudalism was systematically established and intentionally developed...
Sidney L. Gulick 「Evolution Of The Japanese, Social And Psychic」
...None of these were complete, and they had the appearance of having been intentionally broken into small fragments...
L.W. King and H.R. Hall 「History Of Egypt, Chaldæa, Syria, Babylonia, And Assyria In The Light Of Recent Discovery」
...On the south side of a ravine with steep slopes and bowlder-strewnbottom, half a mile from the "Rain Heiau," is a pile of stones, mostof them the natural outcrop, but some of them intentionally placed...
Gerard Fowke 「Archeological Investigations」
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