Chatter in laboratory during free period

Experimental laboratory - 1967

Hospital research laboratory atmosphere

Hospital pathology laboratory atmosphere, some indistinct speech

Girls' Grammar School, chatter in laboratory during free period. (No distinct speech.)

Pathological Laboratory, atmosphere recorded at workbench, clattering & clinking of metal & glass instruments, some liquids poured & occasional machinery hum

Pathological Laboratory, atmosphere recorded at laboratory workbench, clattering and clinking of metal & glass instruments, some liquids being poured

Experimental laboratory. (Specially created effect)