Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Mayhew
1952
Mallard
E 15
Experimental R.H.
Gibson eggs set 3/29/52
Dipped
(embryo)
size
40%
1. 82 mm.- 22.7 gms.
2. 68 " - 11.3 " (dead before dipped)
o
3. 97 " - 21.8 " (?)
o
4. 63" - 8.6 "
5. 99 " - 24.4 "
6. 66 " - 11.3 " (d.b.d.)
x
7. 75" - 9.7 " (d.b.d.)
o
8. 98 " - 23.5 " (?)
x
9. 51 " - 5.9 " (d.b.d.)
x
10. 91 " - 21.1 "
11. 89 " - 17.5 "
65%
1. 102 mm.- 32.8 gms.
2. 98 " - 20.9 " (?)
x
3. 68 " - 10.0 " (d.b.d.)
x
4. 102 " - 28.1 " (?)
x
5. 70 " - 11.7 " (d.b.d.)
o
6. 65 " - 10.2 "
7. 84 " - 19.2 " (?)
o
8. 109 " - 28.3" (?)
x
9. 68 " - 8.4" (d.b.d.)
o
10. 70 " - 10.3" (d.b.d.)
x
11. 75 " - 15.2 " (d.b.d.)
o
12. 72 " - 11.4 "
13. 84 " - 16.3 " (?)
o
75%
1. 98 mm.- 27.1 gms.
2. 101 " - 29.9 "
3. 110 " - 29.9 "
x
4. 99 " - 27.0 "
o
5. 94" - 21.4 "
o
x=dipped 5 times
o=dipped once