Dr.William.H.Schuessler's System

In making Bio-chemic/Tissue salt remedies system, Why Dr.William.H.Schuessler had not sujjested any organic elemental based remedy i.e.Carbon,Hydrogen,Oxygen and Nitrogen.

If Bio-chemic system is complete or mostly complete system and If his 12 tissue salts justify his statement i.e.:-

"Therapies which have such undefined boundaries,
that they may at any time accept new remedies,
and may like wise retain or reject old remedies,
cannot offer the security necessary in service
of a patient,and in the intrest of science.
To create a therapy with sharply defined
boundaries,has been for a long time,my endeavour"
.....By Dr.William.H.Schuessler,1874.