1879. | Zoology. 713 
almost constantly. The expression of its face was highly intelli- 
gent, while the intellectual development of its forehead and entire 
cranium would have been quite alarming to any enemy of the 
theory of evolution. This specimen was a fine healthy male 
infant about seven or eight months old, twenty-two and a-quarter 
inches in height, thirty-seven inches in extent of arms and fifteen 
and a-half pounds in weight. He exhibited fully as much intelli- 
ennui. When teased beyond endurance he would first whine fit- 
fully, but if the teasing were continued, he would throw himself 
upon the floor, kicking and screaming and catching his breath 
as loudly and naturally as a big spoiled child. He was afraid o 
strangers as a rule, but decidedly attached to my Chinese servant 
would shuffle up to me and climb with all haste into my arms. 
When a cat came near him he would grab it by the tail with the 
very same action and bright, mischievous expression of face that 
we have all seen in human children. 
“ Last year while on a collecting expedition for Prof. H. A. 
Ward, I had ample opportunities to study the habits of the orang 
outang in its native forests. visited Borneo in August, 1878, 
for the sole purpose of obtaining specimens of the Bornean Simia 
and to study the different species. I visited the territory of 
Sarawak and for two and a-half months devoted my entire time 
vicinity of the rivers. I soon found that the only way to reach 
them would be to paddle up and down the rivers and watch for 
them in the tree tops. Near the source of the Simujan river, and 
far beyond the last Dyak village, we found great numbers of old 
orang nests and some which were quite new. The nest consists 
of a quantity of leafy branches broken off and piled loosely into 
the fork of a tree. The orang usually selects a sapling and builds 
his nest in its top, even though his weight causes it to sway 
alarmingly. He often builds his nest within twenty-five feet of 
the ground and seldom higher than forty feet. . Sometimes it is 
fully three feet in diameter, but usually not more than two, and 
quite flat on the top. There is no weaving together of branches. 
In short the orang builds a nest precisely as a man would build 
one for himself were he obliged to pass a night in a tree top and 
. 
