When one of the series of foreshortenings is made at a right angle with the lateral series the arrangement of the phases is usually thus:

123456789101112Laterals.
123456789101112Rear Foreshortenings
from points of view on
the same vertical line,
at an angle of 90 deg.
from the Laterals.
123456789101112Front Foreshortenings
from points of view on
the same horizontal
plane, at suitable angles
from the Laterals.

The plates are not photographs in the common acceptation of the word, but are printed in Permanent Ink, from gelatinised copper-plates, by the New York Photo-Gravure Company, on thick linen plate-paper.

The size of the paper is 45 × 60 centimetres—(19 × 24 inches), and the printed surface varies from 15 × 45 to 20 × 30 centimetres—(6 × 18 to 9 × 12 inches).

The number of figures on each plate varies from 12 to 36.

To publish so great a number of plates as one undivided work was considered unnecessary, for each subject tells its own story; and inexpedient, for it would defeat the object which the University had in view, and limit its acquisition to wealthy individuals, large Libraries, or Institutions where it would be beyond the reach of many who might desire to study it.

It has, therefore, been decided to issue a series of One Hundred Plates, which number, for the purposes of publication, will be considered as a "COPY" of the work. These one hundred plates will probably meet the requirements of the greater number of the subscribers.

In accordance with this view is re-issued the following prospectus.

PROSPECTUS
ANIMAL LOCOMOTION,