BLOOD OF FRESH-WATER MUSSELS 
531 
Table 14 . — Changes in specific gravity and pH of the blood of fresh-water mussels in solutions of 
potassium salts 
POTASSIUM CHLORIDE 1.00 PER CENT 
Scientific name 
Common name 
Hours of 
exposure 
Condition of animal 
pH 
Specific 
gravity 
Washboard 
4 
Heart beating 
7. 9 
1. 0036 
do 
4 
Moribund.. _• 
7.9 
I. 0041 
Do 
do 
4 
do 
7.5 
1. 0043 
POTASSIUM CHLORIDE, 0.50 PER CENT 
16 
Moribund _ . _ 
7. 5 
1. 0035 
Do 
do_ 
16 
do 
7. 5 
1.0038 
Do 
do 
16 
do. 
7. 5 
1.0038 
Do . 
do. 
16 
do 
7.7 
1. 0038 
Do 
do 
16 
do 
7. 5 
1. 0045 
Do 
do 
16 
Dead 
1. 0045 
POTASSIUM CHLORIDE, 0.25 PER CENT 
Yellow sand-shell 
8 
8 
8 
8 
24 
Moribund 
7.5 
7. 5 
7. 5 
7.5 
1. 0022 
1. 0027 
1. 0027 
1.0029 
Do. 
do. 
do. 
Do 
do 
Heart beating 
Do 
do. 
Moribund . .. .. 
Do 
do 
Dead 
do__ 
24 
Heart beating. _ 
7. 3 
1 0039 
Do 
do 
24 
do. _ 
7. 3 
1 0049 
Do 
do . 
24 
do 
7. 5 
1. 0054 
Do 
do 
32 
Moribund 
7. 4 
1.0045 
POTASSIUM CHLORIDE, 0 10 PEE CENT 
Yellow sand-shell ... . . . 
16 
Moribund. .. 
7. 7 
1 0025 
Do . 
do 
16 
do 
7. 5 
1 0020 
Do 
.. ..do ... __ .. .. 
16 
do_ 
7. 3 
1 0027 
Warty-back ... 
16 
_ ___do 
7. 1 
1 0027 
Y ellow sand-shell 
20 
do 
6.9 
1 0022 
Paper shell... . 
20 
Heart beating .... 
7. 3 
1 0034 
Warty-back . . 
20 
do 
7. 1 
1 0025 
River mucket 
64 
Moribund. 
7. 1 
1 0027 
Paper shell 
64 
do 
7. 3 
1 0O2Q 
Warty-back.. . .. ... ... ... 
64 
do. 
7.3 
1.0035 
POTASSIUM CARBONATE, 0.50 PER CENT 
Pope’s purple. . . 
20 
Moribund. . ... . . 
7. 1 
1. 0043 
1.0048 
1. 0050 
1.0049 
Do I... 
*_do .. - 
20 
Dead 
7. 1 
7. 3 
Do 
do.. ... ... 
20 
Moribund 
Pond paper shell . .. 
20 
do _ 
7 2 
POTASSIUM CARBONATE, 0.25 PER CENT 
Washboard 
20 
20 
20 
Moribund.. 
7.5 
7.7 
8.0 
Do * 
do 
.do 
do_ __ . 
Dead . 
POTASSIUM SULPHATE, 0.25 PER 
CENT 
Washboard . . .. ... 
20 
Moribund.. _ 
8 0 
do _ 
20 
do 
Do 
. ...do 
20 
do .. . 
1 5 
Do 
do 
20 
do 
7 5 
Do 
do ... . 
20 
do 
7 fi 
Do 
do .. __ 
20 
do 
7 6 
Do 
.. .do. .. . . ... 
20 
. ..do 
7 3 
Do 
do 
20 
Dead 
7 6 
Do 
do 
20 
do 
7 5 
Do 
do 
20 
do _ ... ._ 
7.3 
POTASSIUM CHLORIDE, 0.25 PER CENT; PLUS CALCIUM CHLORIDE, 0.25 PER CENT i 
1.0028 
1.0035 
1.0035 
1.0027 
1.G028 
1. 0029 
1.0029 
1.0031 
1.0032 
1. 0033 
1.0027 
1.0029 
1. 0037 
River mucket. 
4 
Heart beating ._ 
7.5 
8.0 
7.5 
7.3 
7.5 
7.3 
7.5 
7.3 
1.0030 
1. 0030 
1.0035 
1.0041 
1. 0042 
1.0042 
1.0043 
1.0043 
Do 
do 
4 
do. 
Do 
4 
. . .do 
Fat mucket 
24 
Do "... 
do. 
24 
Heart beating 
River mucket .. 
24 
Do 
do__ .. ... 
24 
do 
Do 
do.. 
24 
do 
1 Made up in distilled water. 
Note.— “Moribund,” under condition of animal, designates a mussel in which the heart was not beating when shell was opened 
hut an animal still responding to tactile stimulation of the foot or mantle. 
