J Rodgers -1942 51 Enmeres skiltonianus Nov. 18, 1942 Mrs. Viet Zool., Univ. Calif., Berkeley, Alameda Co., Calif. (Nov. 23, recp. 50) July 8+, 6 eggs were laid in one nest. August 16, I began to notice that the eggs were more moist than could be accounted for by the moisture added to the vivarium. One by one the eggs appeared very wet, and covered with dirt. They shiveled and mold grew on them. August 22, all the eggs of this nest were spoiled. These eggs were in the nest a total of 39-45 days. July 11, one egg was laid. September 15, it disappeared. I killed the parent, opened her stomach and found the egg. The embryo was partly spoiled. It was in the nest 65 days. July 15+, 5 eggs were laid. September 16, one egg was found wet and shiveled. One by one others appeared wet and shiveled, and the parent appeared to have lost interest in the nest. One or two of the eggs were several times found partly covered with dirt. On September 21, I opened all the eggs (only one still appeared normal, and one was shrunken and dried) under water. The embryos in the three eggs that were least shiveled appeared to be in good condition and nearly to hatching size, but no heart beat or flow of blood could be detected. These eggs were in the nest 62-67 days. I suspect that after waiting long past the time the eggs should normally hatch, the parents destroy them by biting and breaking them or by eating them. The above notes on this page constitute a brief and possibly incomplete summary of the history of three nests of eggs, laid in a vivarium in my office to M. V. Z. The summary was hurriedly drawn up for a letter to Dr. McTaggart Cowan (Nov. 18, 1942). Specimen no. 3113; nest no. 1 " " 3115; " " 2 " " 3114; " " 3