Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Mayhew
1952
Mallard E19
Experimental Eggs from Zack Farmer, 647 G St., Davis,
California.
Candling (4/21/52) Candling (4/17/52)
Relative Humidity No. set (3/29/52) Fertile Doubtful Infertile Develop. Infertile Develop. stopped condition when stopped
40% — — — —
65% — — — —
75% 10 9 — 1 9
85% — — — —
90% — — — —
Relative Humidity No. Hatched Date Hatched % of fertile eggs that hatch % of fertile eggs broken open condition of broken eggs
40% — — — —
65% — — — —
75% 1 4/27 11 90 8 (see page E20)
85% — — — —
90% — — — —