Mayhew 1952 Mallard E35 Experimental May 12 75% - 2 eggs pipped, but both appeared to be pipped too early, since the yolk sac had not yet been absorbed in either case. 85% - 2 eggs pipped, but they also appeared to have pipped too early. 95% - 1 egg pipped too early. May 13 Candled Vic Morejohn's eggs that were set May 7th today. At 75% R.H., all 10 were fertile; at 85% R.H., 9 were fertile & 1 was doubtful (looked like a blood ring). at 40% R.H. 1 F⑧ egg broke open, as it was rottin. May 14 All remaining eggs in the incubator (Farmer ⑲, ⑧, ⑪, + Morejohn ⑦) added at 65%. were dipped once this afternoon. 12 M eggs May 15 # Farmer ⑲ eggs are pipped at 75% this afternoon. None of this batch has pipped at 85% R.H. yet. May 16 2 Farmer ⑲ eggs hatched at 75% today. May 17 2 Farmer ⑲ eggs hatched at 75% & 1 F⑩ egg hatched at 85% today. 10 more Morejohn eggs & 5 more Farmer eggs were set today — 5 M eggs at 40%, 5 F eggs at 65%, 5 M eggs at 90%. The eggs that were placed in the 40% & 90% humidities were weighed before being placed in the boxes. Now eggs at all humidities have been weighed.