Observations on the application of catadioptric zones to lights of the first order in the system of Fresnel : with tables of the elements of zones adapted to these lights: being the substance of a report to a Committee of the Commissioners of Northern Lights apppointed to cosider the illumnination of lighthouses by means of lenses /
Stevenson, Alan,1807-1865,
Gardner, J. W.,former owner.StEdNL
Commissioners of Northern Lighthouses (Great Britain)
Edinburgh : Printed by Neill and Company, Old Fishmarket,
1840.
"Ordered to be printed by the Commissioners of the Northern Lighthouses."--title page.
Manuscript signature of "J W Gardner" at the head of the title page.
Catadioptric systems
Lenses
Scotland Edinburgh.