consanguinit

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
CONSANGUINITY. The relation subsisting among all the different persons 
descending from the same stock, or common ancestor. Vaughan, 322, 329; 2 Bl. 
Com. 202 Toull. Dr. Civ.. Fr. liv. 3, t. 1, ch. n 115 2 Bouv. Inst. n. 1955, 
et seq. 
     2. Some portion of the blood of the common ancestor flows through the 
veins of all his descendants, and though mixed with the blood flowing from 
many other families, yet it constitutes the kindred or alliance by blood 
between any two of the individuals. This relation by blood is of two kinds, 
lineal and collateral. 
     3. Lineal consanguinity is that relation which exists among persons, 
where one is descended from the other, as between the son and the father, or 
the grandfather, and so upwards in a direct ascending line; and between the 
father and the son, or the grandson, and so downwards in a direct descending 
line. Every generation in this direct course males a degree, computing 
either in the ascending or descending line. This being the natural mode of 
computing the degrees of lineal, consanguinity, it has been adopted by the 
civil, the canon, and the common law. 
     4. Collateral consanguinity is the relation subsisting among persons 
who descend from the same common ancestor, but not from each other. It is 
essential to constitute this relation, that they spring from the same common 
root or stock, but in different branches. The mode of computing the degrees 
is to discover the common ancestor, to begin with him to reckon downwards, 
and the degree the two persons, or the more remote of them, is distant from 
the ancestor, is the degree of kindred subsisting between them. For 
instance, two brothers are related to each other in the first degree, 
because from the father to each of them is one degree. An uncle and a nephew 
are related to each other in tho second degree, because the nephew is two 
degrees distant from the common ancestor, and the rule of computation is 
extended to the remotest degrees of collateral relationship. This is the 
mode of computation by the common and canon law. The method of computing by 
the civil law, is to begin at either of the persons in question and count up 
to the common ancestor, and then downwards to the, other person, calling it 
a degree for each person, both ascending and descending, and the degrees 
they stand from each other is the degree in which they stand related. Thus, 
from a nephew to his father, is one degree; to the grandfather, two degrees 
and then to the uncle, three; which points out the relationship. 
     5. The following table, in which the Roman numeral letters express the 
degrees by the civil law, and those in Arabic figures at the bottom, those 
by the common law, will fully illustrate the subject. 

��������������������Ŀ
�          IV.       �
�Great grand-father's�
�        father      �
�           4        �
����������������������\
         �           \
��������������������Ŀ��Ŀ����������������Ŀ
�          III.      �   �      V.         �
� Great grand-father �   �Great grand-uncle�
�           3.       �   �                 �
��������������������������������������������
            �          \                      
��������������������Ŀ��Ŀ���������������Ŀ
�          II.       �   �        IV.     �
�    Grand father    �   �   Great uncle. �
�          2.        �   �         3      �
�������������������������������������������
            �          \                   \
��������������������Ŀ��Ŀ���������������Ŀ��Ŀ����������������Ŀ
�           I.       �   �      III.      �   �         V.      �
�                                                               �
�        Father      �   �     Uncle.     �   �Great Uncle's son�
�           1.       �   �       2.       �   �       3.        �
�����������������������������������������������������������������
            �        \                  \              \
�����������������Ŀ��Ŀ��������������Ŀ���Ŀ��������������Ŀ���Ŀ�����������Ŀ
�                 �   �       II.     �    �      IV.      �    �     VI.    �
�Intestate person �   �     Brother   �    � Cousin german �    � 2nd. Cousin�
�    proposed.    �   �        1      �    �       2       �    �      3     �
������������������������������������������������������������������������������
            �                                \
��������������������Ŀ�����������������������������������Ŀ���Ŀ������������Ŀ
�           I.       �                     �      III.    �    �      V.     �
�          Son.      �                     �     Nephew   �    �Son of Cousin�
�           1.       �                     �       2      �    �    german 3 �
����������������������                     �����������������������������������
            �                                  \
��������������������Ŀ                    ������������������Ŀ
�          II.       �                    �        IV.       �
�       Grandson.    �                    �Son of Nephew or  �
�          2.        �                    �brother's grandson�
����������������������                    �         3        �
            �                             ��������������������
��������������������Ŀ
�          III.      �
�  Great grandson.   �
�           3.       �
����������������������

     6. The mode of the civil law is preferable, for it points out the 
actual degree of kindred in all cases; by the mode adopted by the common 
law, different relations may stand in the same degree. The uncle and nephew 
stand related in the second degree by the common law, and so are two first 
cousins, or two sons of two brothers; but by the civil law the uncle and 
nephew are in the third degree, and the cousins are in the fourth. The mode 
of computation, however, is immaterial, for both will establish the same 
person to be the heir. 2 Bl. Com. 202; 1 Swift's Dig. 113; Toull. Civ. Fr. 
liv. 8, t. 1, o. 3, n. 115. Vide Branch; Degree; Line. 
    

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