The boyl-yas do not bite, they feed stealthily; they do not eat the bones, but consume the flesh.

Just give me what you intend to give, and I'll walk off.
The boyl-yas sit at the graves of natives in great numbers.

If natives are ill, the boyl-yas charm, charm, charm, charm, and charm, and by and by the natives recover.
...
I could learn nothing further from him.
The Wau-gul is an imaginary aquatic monster, residing in fresh water and endowed with supernatural power which enables it to consume the natives, although it generally attacks females.

The person it selects for its victim pines away almost imperceptibly and dies.
SUPERSTITION AND THEIR OPINION REGARDING THE NIGHTMARE.
The natives believe that the nightmare is caused by some evil spirit.

The way in which they get rid of this evil being is by jumping up, seizing a lighted brand from the fire, twirling it round the head, and muttering a variety of imprecations; they then throw the stick away in the direction they conceive the spirit to be in.