Columbia subject headings:
Physiology, Comparative--Congresses.
Sense organs--Congresses.
Senses and sensation--Congresses.
Harvard subject headings:
Physiology, Comparative--Congresses.
Sense organs--Congresses.
Senses and sensation--Congresses
Princeton subject headings:
Physiology, Comparative--Congresses.
Sense organs--Congresses.
Senses and sensation--Congresses.