Oeuvres complètes. Tome VI. Correspondance 1666-1669

[p. 519]

N^o 1772.
Lodewijk Huygens à Christiaan Huygens.
Appendice au No. 1771.
1669.

La pièce se trouve à Leiden, coll. Huygens.

Copie de la Table Angloise.

Of 100. there dies within the first six years	36.
The next 10. ijears or decad	24.
The second decad	15.
The third decad	9.
The fourth	6.
The next	4.
The next	3.
The next	2.
The next	1.

From whence it follows, that of the said 100. conceived there remaines alive

At 6. ijears end	64.
At 16. ijears end	40.
At 26.	25.
At 36.	16.
At 46.	10.
At 56.	6.
At 66.	3.
At 76.	1.
At 80.	0.