Maynew 1953 Mallard E 68 May 11 to 40°C. at 75% R.H. and 85% R.H., so those eggs are also probably dead. However, 75% + 85% eggs hatched during this time, whereas no 40% eggs did, so perhaps some of the eggs survived at the higher humidities. May 14 Today I broke & examined all unhatched eggs of the April 14 setting. The results were: Egg. No. R.H. Water Condition Remarks 135 40 1 very small embryo 136 40 1 died during last week 137 40 1 died during last week 138 40 2 died during last week 139 40 2 died during last week 140 40 2 soon ready to pip 143 65 1 pipped too soon 150 75 1 died during last week 151 75 1 nearly ready to pip 152 75 2 pipped (too soon?) 155 85 1 ~ 1/2 grown 156 85 1 died during last week 157 85 1 pipped (too soon?) 160 85 2 pipped too soon May 19 Today I broke open all unhatched eggs of the April 21 setting. The results were: Egg No. R.H. Water Condition Remarks 162 85 1 pipped too soon 163 85 1 pipped too soon 164 85 2 died during last week 165 85 2 pipped too soon 166 75 0 died during last week 167 75 0 died during last week