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We think that this is an important report because here, for the first time, extensive experimental results and analytical details are presented which strongly support the Lüneburg Theory of the Geometry of Binocular Visual Space. This is a terminal report on research done under contract with the Office of Naval Research (N6onril7119; NR 143-638). The work is being terminated because of our inability to acquire and retain adequate personnel with the highly technical skills necessary for such work. A very high degree of mathematical analytical ability must be in constant and harmonious rapport with an equally high degree of laboratory experimental skills in order to carry out these investigations. In the untimely death of Rudolph Lüneburg we suffered an extremely severe loss. After a lapse of two years we were fortunate in acquiring through Professor Richard Courant one of Dr. Luneburg's associates, Dr. Albert A. Blank, who has shown brilliance in his mathematical attack. All the new mathematical analysis herein described and most of the formulation of this report are due to his effcrts. Our mathematical consultant, Dr. Paul Boeder, has given much time and enthusiastic encouragement to our working staff. Professor H.S.M. Coxeter, as a specialist in the non-euclidean geometries, contributed important suggestions which were partly carried out in the ancillary investigations of Dr. Charles Campbell who earned tb* D. Sc. degree for his part in this research. Dr. Bernard Altschuler and Dr. Anna Stein spent respectively one year and two years in the mathematical analyses during the early part of the study. The largest part of the actual experimentation was carried out by Dr. Gertrude Rand and Miss M. Catherine Rirtler.

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We describe 7 patients with a new form of chondrodysplasia punctata. Its principal clinical manifestations are flat midface and nose, short limbs, and otherwise normal development. Consistent radiologic manifestations in the newborn infant are discrete calcific stippling, coronal clefts of vertebral bodies, short tibiae, and shortness of the 2nd and 3rd metacarpal bones. Radiologic findings in the older child include shortness of tibiae and the 3rd and 4th metacarpals.

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