Talk:Book - Manual of Human Embryology 8
Table 1
++++++++++++++++++++++++++ Married women . . . Unmarried women
On last day of menstrua tloD.
Percent. 35.55 25.49
First twelve days
after beginning of
menstruation.
Percent.
88.44 70.98
First seven days
after end of
menstruation.
Per cent.
88.88 70.58
Similar figures are given by Issmer.
Time of copulation.
First week of menstrual period . . Second week of menstrual period Third week of menstrual period. Fourth week of menstrual period
Average duration of pregnancy.
277 days 279 days 287 days 285 adys
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Table 2
according to Bischoff the growth of the dog's ovum is as follows :
Diameter of ovum in mm. 0.15 0.14 0.14 0.16 0.16 0.18 0.20 0.21 Age in days 1 2 3 4 5 6 7 8 Diameter of ovum in mm. 0.28 0.30 1.0 2.0 3.0 4.0 5.0 5.0 6.0 Age in days 9 10 11 12 13 14 15 16 16.5 Twelve days after copulation are required before the ovum is as large as Peters 's and thirteen days before it is as large as Merttens's. When it is recg^lled that Merttens's ovum was scraped out of the uterus twenty-one days after the beginning of the last period we are inclined to believe that sixteen to twenty-one days represents its true age. Peters 's ovum, on the other hand, must be over ^Three or four days old"; fifteen is much more nearly its correct age.
| Age in days | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 16.5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diameter of ovum in mm | 0.15 | 0.14 | 0.14 | 0.16 | 0.16 | 0.18 | 0.20 | 0.21 | 0.28 | 0.30 | 1.0 | 2.0 | 3.0 | 4.0 | 5.0 | 5.0 | 6.0 |
Table 3
Issmer gives the following figures:
Size of child
No. of cases.
Age in days, from the beginning of the last
in cm.
menstrual period.
48
203
271
49
272
278
60
252
277
51
211
282
62
123
283
63
34
286
54
18
290
Table 4
Together there are over 1000 measurements, of which over 500 have data relating to the age. Fully half of both these are from my own collection.
Days between
the beginning
Only possible time of
Length of embryo
of the last
copulation between the last
Author.
in mm.
menstruation
menstruation and the
and the
abortion.
abortion.
Embryo anlage, 0.15
38
Exactly 16 dnys
Bryce-Teacher's monograph, 1908.
Ovum, 6.6X3.3
42
20 days before and earlier
Reichert.
Embryo anlage, 1.3 .
34
Exactly 21 days
fetemod : Anat. Anz., vol. XV, 1899.
Embryo, 3.2
48
40 days before and later
His : A. M. E. II.
Embryo, 6
60
38 days before and later 39 and 41 days before 45 days and later
Kollmann's Atlas.
Embryo. 7
49 57
No. 208.
Embryo, 7}
His.
Embryo, 8.8
42
Exactly 38 days
Tandler : Anat. Anz., vol. xxxi, 1907.
Embryo, 10
60
49 days and earlier
His.
Embryo, 11
65
31 days (?)
Rabl : Entwickl. d. Gesch.
Embryo, 13.6
63
53 days and later
His.
Embryo, 14
65
Exactly 47 days
Rabl.
Embryo, 30
75
Exactly 56 days
No. 26.
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