Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Mayhew
1953
Mallard
E 58
Experimental
Egg No.
Relative
Humidity
No. at
that R.H.
Date
Laid
Date
Set
Fertile
Date
Hatched
Water
Condition:
270
75
92
5/15
5/19
+
6/15
2
271
65
60
5/19
5/19
—
—
1
272
65
61
5/17
5/19
—
—
1
273
65
62
5/16
5/19
+
—
1
274
65
63
5/19
5/19
+
6/16
2
275
65
64
5/17
5/19
+
—
2
276
65
65
5/14
5/19
+
6/16
2
277
40
57
5/19
5/19
+
—
1
278
40
58
5/18
5/19
+
6/14
1
279
40
59
5/18
5/19
+
6/15
1
280
40
60
5/16
5/19
+(cr)
—
1
281
40
61
5/17
5/19
+
6/15
2
282
40
62
5/18
5/19
+
6/15
2
283
40
63
5/18
5/19
+
—
2
284
40
64
5/16
5/19
+
6/15
2
285
40
65
5/23
5/26
+
6/21
1
286
40
66
5/24
5/26
+
6/21
1
287
40
67
5/23
5/26
+
6/21
1
288
40
68
5/24
5/26
+
—
2
289
40
69
5/25
5/26
+
6/21
2
290
40
70
5/24
5/26
+
6/21
2
291
40
71
5/25
5/26
+
6/21
2
292
65
66
5/21
5/26
+
—
1
293
65
67
5/20
5/26
+
6/21
1
294
65
68
5/21
5/26
+
—
1
295
65
69
5/21
5/26
+
6/23
2
296
65
70
5/22
5/26
+
—
2
297
65
71
5/23
5/26
+
6/21
2
298
75
93
5/20
5/26
+
6/23
0
299
75
94
5/26
5/26
+(cr) (pipped)
0