J. Rodgers 1942 Ernecea skiltonianus July 11 Mus. Nat. Zool., Univ. Calif., Berkeley, Alameda Co., Calif. 3115 first laid No. 3115 has laid one egg in a cavity under the NW corner of the SE quarter of her cage. This will be referred to as nest no. 2. July 12 9:30 p.m. 3113 is back with eggs. July 13 9:30 a.m. 3113 left the eggs and the nest cavity when I lifted the cover. She left thru a tunnel that was open. This is the first time I have observed the nest cavity when it was not entirely closed off. I caught her and returned her to the nest cavity. There is still only one egg with 3115. 5:20 p.m. No change in number of eggs; both 3113 & 3114 will eggs. July 14 (a.m.) 3113 in NE corner of her cage (under NE quarter). 3115 still has only one egg. She has been with it each time I have looked since it was laid. She was out on top yesterday -- No. 3116 was out on top yesterday afternoon. (9:30 a.m.) July 15 3114 laid 5 eggs sometime since 5:30 p.m. yesterday, thus establishing nest no. 3. 3113 and 3115 stayed with eggs as I [illegible] lifted cover to see nest. 3115 left its egg and came up on top. I put 3115 back down the entrance. Nest no. 3 (think no. 3114) is in the north side of the south northeast quarter of the nest. July 16 9:00 a.m. No. 3115 still with single egg. No. 3113 with its 6 eggs. The chamber where the 5 eggs of no. 3114 were first found, yesterday, is empty and