The same observer has recently found great moraines at a low level on the Atlas range in North Africa.

Along the Himalaya, at points 900 miles apart, glaciers have left the marks of their former low descent; and in Sikkim, Dr.

Hooker saw maize growing on ancient and gigantic moraines.

Southward of the Asiatic continent, on the opposite side of the equator, we know, from the excellent researches of Dr.

J.