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[[circled]] 59 [[/circled]]

[[underlined]] Ateles [[/underlined]] ssp., I. 
November 19, 1960
Barro Colorado

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[[image - 3 straight vertical red lines and one vertical red hatched line in the margin]] 

We have kept C and D (see notes of Nov. 1) together in the same small cage in the animal house for more than 2 weeks now. Then today I tried separating them. 
When I first approached their cage, D uttered indeterminate Screams and notes intermediate between indeterminate Screams and [[Trills?]].  Then both uttered lots of indeterminate Screams when we picked them up to separate them.
We put D back in the cage and let C run around loose. 
D sat in the cage, uttering quite distinct and extreme [[Trills?]], really L [[Trills?]], plus PL, apparently directed toward (and presumably provoked by) me.  Apparently hostile.
C began to walk and run around the floor of the animal house, with occasional pauses while it sat and looked "puzzled". During all this time it uttered determinate Screams and WW's. Just as on November 1. The Screams and WW's were jumbled together, but [[underlined]] not [[/underlined]] randomly. C tended to utter Screams when it was uttering notes very frequently, and WW's when it was uttering notes less frequently. They certainly sound as if they were lower intensity than the Screams.  Many of the WW's sound like Screams which have suddenly "gone thin". It is possible, however, (see below) that the difference between WW's and determinate Screams is qualitative [[underline]] as well [[/underline]] as quantitative
C uttered its screams and WW's without a trace of PL.
D did not seem to react to it's sudden isolation, or to the Screams and WW's uttered by C, in any very remarkable fashion. At first, it tended to utter a single [[Trill?]] whenever C uttered a single determinate Scream

Transcription Notes:
To aid searchability I've put a space between text and [[]]. [[Trills?]] not sure this is the correct transcription. It really looks like Trll or Till but am unsure so have left in brackets.