More swift and more beautiful, were slender deer with single horns, twisted spirally; sometimes very long.
"Son of Power"
Will Levington Comfort and Zamin Ki Dost
That has not a spirally-twisted keel, but the structure is indicated both by the circinnate apex of the style, and by a slight curl at the summit of the keel.
"Journal of an Expedition into the Interior of Tropical Australia In Search of a Route from Sydney to the Gulf of Carpentaria (1848) by Lt. Col. Sir Thomas Livingstone Mitchell Kt. D.C.L. (1792-1855) Surveyor-General of New South Wales"
Thomas Mitchell
It disturbed the dogs not at all whether they were on rock or snow, or whether the sledge rested on runners or turned spirally; but it made considerable difference to us, and we lost much energy in the constant efforts to avoid somersaults.
"My Attainment of the Pole"
Frederick A. Cook