d
That thou shalt do no murder. Wilt thou, then,
Spurn at His edict, and fulfill a man's?
Take heed, for He holds vengeance in His hand
To hurl upon their heads that break his law."--RICHARD III., _Act 1._

* * * * *

{295}

How to Calculate the Time of Expected Labor.

[Illustration: The Embryo In Sixty Days.]

1. The table on the opposite page has been very accurately compiled, and
will be very helpful to those who desire the exact time.

2. The duration of pregnancy is from 278 to 280 days, or nearly forty
weeks. The count should be made from the beginning of the last
menstruation, and add eight days on account of the possibility of it
occurring within that period The heavier the child the longer is the
duration; the younger the woman the longer time it often requires. The
duration is longer in married than in unmarried women; the duration is
liable to be longer if the child is a female.

3. MOVEMENT.--The first movement is generally felt on the 135th day after
impregnation.

4. GROWTH OF THE EMBRYO.--About the twentieth day the embryo resembles the
appearance of an ant or lettuce seed; the 30th day the embryo is as large
as a common horse fly; the 40th day the form resembles that of a person; in
sixty days the limbs begin to form, and in four months the embryo takes the
name of foetus.

5. Children born after seven or eight months can survive and develop to
maturity.

* * * * *

{296}

DURATION OF PREGNANCY.

DIRECTIONS.--Find in the upper horizontal line the date on which the last
menstruation ceased; the figure beneath gives the date of expected
confinement (280 days).

________________________________________________________________
|Jan. | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 |
|Oct. | 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 |
| | |
|Feb. | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 |
|Nov. | 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 |
| | |
|Mar. | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 |
|Dec. | 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 |
| | |
|Apr. | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 |
|Jan. | 6 7 8