On the birth of a child by the Tehuelches, if the parents are rich, i.e. own plenty of mares and horses, and silver ornaments, notice is immediately given to the doctor or wizard of the tribe, and to the cacique and relations. The doctor, after bleeding himself with bodkins in the temple, fore-arm, or leg, gives the order for the erection of a mandil tent, or pretty house as the Indians call it, and mares are slaughtered, and a feast and dance follow, as having taken place in the valley of the Rio Chico.