EXPLANATION
OF
PLATE V.
OF THE ETCHINGS OF THE SKULLS.
B e f o r e entering on the consideration of the forms of the head,
the reader may direct his attention to Plate V. I shall shortly
point out the most remarkable bones and processes as they regard
our present inquiry.
Fig. 1. The Skull of a Man fully grown, presented in a front
view.
a . The F rontal B one ( os frontis).
b . The P r o t u b e r a n c e s f o r m e d b y t h e F r o n t a l S in u s e s ,
(see th e section o f these cavities in fig. 4).
c. The T emporal R id g e of th e F rontal B one ; on which
th e form of th e tem ple depends.
