4 adjectives to describe sculler

Not a syllable about the accommodation of the hopeless sufferers, writhing with the agony of those gun shot wounds, fractured sculls, broken limbs and ulcerated backs which constitute the 'interesting cases' for the professors to 'show off' before their pupils, and, as practice makes perfect, for the students themselves to try their hands at by way of experiment.

There was no tiller, but Ken found a broken scull at the bottom of the boat with which he contrived to steer.

The rowers are splendid-looking fellows from two to four in number, each man with two light sculls, and they sit lightly on thwarts on the same level with the gunwale of the caique.

The precaution of the dealer in contraband had provided his little boat with muffled sculls; and Ludlow, when he was enabled to discover the fine tracery of the lofty and light spars of the Water-Witch, as they rose above the tops of the dwarf trees that lined the shore, had no reason to think his approach was known.

4 adjectives to describe  sculler