J. Memmler 1943 Perognathus californicus June 11, M.V.Z. observed to stuff his cheek pouches with a piece of carrot using both hands to stuff it in + carried a second two mouth eat it. Today they also seems noticeably more steady on their feed. They no longer give the spidery legs unsure impression they did earlier when trying to walk. June 12, Today they were out of their nest for the first time when I arrived. They had dug out some of the shavings behind the nest and were both crouching there. All of the apple, carrot and mallow (one watch glass full) was gone, and about half the dry seeds in another watch glass. They had again made a considerable gain in weight over yesterday. On the table for their growth the approximate age is based on comparative times of weaning and eyes opening as stated in "Natural History of the Zulara Kangaroo Rat" - by Donald J. Zappe. (Jorn. Mamm., Vol. 22, No. 2, May 17, 1941) p. 137 + p. 142 One of the young hopped out of my hand onto the table this morning. Before I left at noon I put them in a metal box with loose sandy soil on the bottom.