During the last week I made several shortexcursions. Asall these rivers have a rapid and short course, and are formed bythe melting of the snow, the hour of the day makes a considerabledifference in their volume. There is one small lizard belonging to aSouth American genus, and two species (and probably more) of theAmblyrhynchus--a genus confined to the Galapagos Islands. The weather continued so very bad that we determine to make a push,and try to reach the vessel before night. I saw threewell-known trees; in front, the bark was worn smooth, as if by thebreast of the animal, and on each side there were deep scratches,or rather grooves, extending in an oblique line, nearly a yard inlength. Formerly it must haveswarmed with great monsters: now we find mere pigmies, comparedwith the antecedent allied races. Beads, hill of. Another day,having placed myself between a penguin (Aptenodytes demersa) andthe water, I was much amused by watching its habits. Saline Streams.