No CrossRef data available.
Published online by Cambridge University Press: 03 November 2016
In the twelve slides described in this paper the Picture Plane is that determined by the two thickened vertical lines which appear in each diagram. It will be called the P. PI.
Similarly the Ground Plane is that determined by the two thickened horizontal lines which appear in each diagram. It will be called the G. PI.
These slides were exhibited at the General Meeting held in January, 1906, by means of stereoscopes lent for the occasion by Messrs. Underwood and Underwood, 104 High Holborn. They have announced the sale prioe at 8s. 6d. the set of 12. The reproductions here are not in Central-, but in Parallel-Perspective.
* These slides were exhibited at the General Meeting held in January, 1906, by means of stereoscopes lent for the occasion by Messrs. Underwood and Underwood, 104 High Holborn. They have announced the sale prioe at 8s. 6d. the set of 12. The reproductions here are not in Central-, but in Parallel-Perspective.