REVOLVING DIOPTRIC LIGHT OF THE FIRST ORDER.
Plan
PLATE XV.
Stevenson’s Account of Skerryvore Lighthouse.
G. Aikman, Sculpt.
FIXED DIOPTRIC LIGHT OF THE FIRST ORDER.
Vertical Section.
PLATE. XVI.
Stevenson’s Account of Skerryvore Lighthouse.
REVOLVING DIOPTRIC LIGHT OF THE FIRST ORDER.
Plan
PLATE XV.
Stevenson’s Account of Skerryvore Lighthouse.
G. Aikman, Sculpt.
FIXED DIOPTRIC LIGHT OF THE FIRST ORDER.
Vertical Section.
PLATE. XVI.
Stevenson’s Account of Skerryvore Lighthouse.