A NEW SUB-NORMAL VISION APPLIANCE
Edwin Forbes Tait, John Collins Neill · Optometry and Vision Science · 1936
Philadelphia, Pa. *An abridgment of the material presented before the American Academy of Optometry at Cleveland, Ohio, December 16, 1934. †The authors wish to acknowledge the kind help of Dr. Joseph B. Deissler who developed the methods of grinding the telescopic oculars and supervised the manufacture of the experimental spectacles.