226 DRS. T. L. BRUNTON AND J. T. CASH ON CHEMICAL CONSTITUTION, 
Table showing the relations of the Alkalies and Alkaline Earths as Poisons to 
Nerve and Muscle. 
The most powerful paralyzers of motor nerves are put at the head of the column, 
and the others follow in the order of decreasing activity. 
Those bodies which increase most the height and duration of muscular contraction 
and of muscular contracture are placed at the head of the corresponding columns, and 
at the foot are those which reduce them most. 
Muscle. 
Motor nerves. 
i 
Height of 
contraction. 
Duration of 
contraction. 
Contracture. 
nh 4 
Ba 
Ba 
Ba 
L 
Rb 
Rb 
Rb 
K 
nh 4 
nh 4 
nh 4 
Be 
Er 
Na 
Na 
Ca 
K 
Ca 
Ca 
Sr 
Cs 
Sr 
Sr 
Ba 
La 
Yt 
L 
Cs 
Yt 
Cs 
Yt 
La 
— 
Er 
Be 
— 
Ca 
— 
Di 
Er 
Na 
Be 
Er 
Di 
— 
Di 
Rb 
Yt 
Di 
Lei 
nh 4 
Rb 
Sr 
— 
Cs 
Na 
Be 
nh 4 
La 
L 
L 
K 
Rb 
Na 
K 
