Maud. _P. rhesus_. Young adult female.

Jimmy II. _P. irus_. Adult male.

Scotty. _P. irus_ (?). Adult male.

Tiny. _P. irus-rhesus_. Female. Born August, 1913.

Chatters. _P. irus_. Adult eunuch.

Daddy. _P. irus_. Adult eunuch.

Mutt. _P. irus_. Young adult male. Born August, 1911.

Julius. _Pongo pygmaeus_. Male. Age, 4 years to 5 years.



When I arrived in Santa Barbara, Doctor Hamilton was about to remodel,
or rather reconstruct, his animal cages and laboratory. This gave us
opportunity to adapt both to the special needs of my experiments. The
laboratory was finally located and built in a grove of live oaks. From
the front it is well shown by figure 10 of plate III, and from the rear,
by figure 11. Its location was in every way satisfactory for my work,
and in addition, the spot proved a delightful one in which to spend
one's time.


[Illustration: FIGURE 12.--Ground plan of Montecito laboratory and
cages. Scale 1/120