A
SECTION A — HUMAN NECESSITIES
B
SECTION B — PERFORMING OPERATIONS
C
SECTION C — CHEMISTRY AND METALLURGY
D
SECTION D — TEXTILES
;
PAPERS
E
SECTION E — FIXED CONSTRUCTIONS
F
SECTION F — MECHANICAL ENGINEERING
;
LIGHTING
;
HEATING
;
WEAPONS
;
BLASTING
G
SECTION G — PHYSICS
H
SECTION H — ELECTRICITY