Image from the Biodiversity Heritage Library.
Contributed by American Museum of Natural History Library.
| www.biodiversitylibrary.org
Transcription
Built open space between articular surfaces for acc.
condyles at top is 100 mil. - at bottom 40 mil.
Axis: Upper lower transverse processes are
joined distally, on both sides forming
a large wing like process [illegible] wide and
opening while in 220 mil. long diameter,
takes up a little more than the prox-
imal one-half of the process. The laminae
of the neural arch
are heavy & thick to form a massive trian-
gular crest having a blunt grooved tip. This
crest has [illegible] superfiicial anterior wall,
but posteriorly the surface slopes from
the tip downward & backward forming
an angle like this; \[A]\ This surface is
deeper concave on the median line.
Two foramina are a little above the
axis, separate the neural crest in its
an. part. directed connecting with
its groove in the posterior surface.
The trans processes are wide & flattened
superiorly & much thicker & heavier than
the drop process. - The two project steeply
backward & somewhat downward.
Axis Measurements
Greatest breadth = 1/30 mil.
" length : 5.30 "
Height body : 280 "
Breadth " : 4.50 "
Length transverse processes = 4.20 "
Breadth distally : 3.00 "