Having heard of some giant's bones at a neighbouring farmhouse on the Sarandis, a small stream entering the Rio Negro, I rode there accompanied by my host, and purchased for the value of eighteenpence the head of the Toxodon.

(8/4.

I must express my obligation to Mr.Keane, at whose house I was staying on the Berquelo, and to Mr.Lumb at Buenos Ayres, for without their assistance these valuable remains would never have reached England.) When found it was quite perfect; but the boys knocked out some of the teeth with stones, and then set up the head as a mark to throw at.

By a most fortunate chance I found a perfect tooth, which exactly fitted one of the sockets in this skull, embedded by itself on the banks of the Rio Tercero, at the distance of about 180 miles from this place.

I found remains of this extraordinary animal at two other places, so that it must formerly have been common.