22

Table VIII.

Serial No. Caste—Class. Total salt con-
centration of
serum by
hæmolysis
method.
Total chlorides of
serum estimated
by Harvey-
McKendrick
method.
1         Hindu Durwan     0.875 per cent. 0.728 per cent.
2         " Dome     0.890 " 0.710 "
3         " Student     0.970 " 0.770 "
4         " Student     0.870 " 0.720 "
5         " Dome     1.070 " 0.763 "
6         " Bearer     1.016 " 0.754 "
7         " Durwan     1.060 " 0.750 "
8         " Student     1.320 " 0.725 "
9         " Coolie     0.928 " 0.730 "
10         " Bearer     1.090 " 0.723 "

       The average we have obtained works out at 0.735 per cent. which would be
0.18 per cent. to 0.20 per cent. of chlorides more than is present in the blood
serum of the European.

       This extra amount of chlorides in the blood serum of the Bengali would
completely account for the higher total salinity of his serum, viz : 1.06 per cent.
to 1.09 per cent. compared with the total salt concentration of the serum of the
European, viz., 0.85 per cent. to 0.90 per cent.

       As already mentioned, the higher salt concentration would assist in raising
the specific gravity and also, in all probability, would tend to increase the alkali-
nity of the blood. With regard to the hæmalkalimetry of the Bengali we are
not in a position to make any definite statement, but an investigation based on
the valuable methods introduced by Moore and Wilson (1) is being carried out.

       The values to be obtained for the basic reactivity of the inorganic salts of
the serum to di-methyl-amido-azo-benzol should give important results in the
Bengali and opens up a wide field of research, both from a physiological and
pathological aspect.

       4. The coagulability of the blood.—A series of observations was carried
out determining the time of coagulation, the method introduced by Wright being

(1) A Clinal Method of Hæmalkalimetry; Moore and Wilson ;—Bio-Chemical Journal, 1906.