Limulus young are very active crawling on the bottom evidently after food. When having won the ground a little the feet are seen to be [illegible] and used as swimming. The legs are rather active but act as vibrating movements, much slower. Others dig under the sand showing the antennae: exposed only of the head into the sand and the by aid of the limbs (antennae) push forward, and with the foot-ants dig away and just heel-ward just grain-toler load. The dead not easily dip under because and [illegible] therefore has a tendency to go deeper than maybe desired. In a regular rhyth-mic manner the tail elevates the posterior half-the abdomen - while the feet are constantly pushing backward the sand, in this way I saw that those made this looked little Climatic drills, double one of elephants with a furrow down the center at occasional marks of the dragging tail. The perfect middle-age when it rests they lie buried almost out of sight only one a foot eyes protruding. In this position there is always left uncovered two narrow slivers between the head and abdomen through which the water evidently comes to the gills. The color of the tail is about that of the The strength of the tail is due to use, in constantly