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[[circled]] 60 [[circled]]
[[underlined]] Ateles [[/underlined]] ssp., Nov. 19, 1960, II. 

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

or WW. Uttering the [[Trill?]] first after C had uttered the Scream or WW. These [[Trills?]] were still probably partly hostile responses to me. Later on, D tended to answer C's determinate Screams and WW's by uttering brief WW's as ever briefer notes, intermediate between WW's and Squ's.
The use of whittle-lelee notes as a "last call" by this species is quite reminiscent of Puiche's.
After a while, D stopped answering C's notes. 
Then we switched the animals around, putting C in the cage and letting D run around loose. C continued Screams and WW's as before; D started to climb around the howler cage, uttering Trills, plus PL.
Then we put D in a separate cage by itself. It first uttered a few more [[Trills?]]; and then went to sleep and/or into Hdd. By this time, C was also giving up. Spent most of the time resting with its head on its arms. Just every once in a while, it would lift its head and utter a single WW.
The whole behavior of both animals today would suggest that they were much less upset by being separated today than when they were separated on November 1st. Perhaps they have both become somewhat more used to human beings in the neighborhood. C is still the "clutchy" one; and it was the one which did most of the interesting calling today
I presume that neither animal uttered O today mainly because they were not greatly upset by being separated. O is presumably an even higher intensity pattern than determinate Screams.
All the behavior of both C and D today could be explained very easily if the determinate Screams and WW's are simply the result of frustrated gregariousness, and the indeterminate Screams and [[Trills?]] are the result of hostility. 
This interpretation must be largely correct, I think. The indeterminate Screams and [[Trills?]] probably are completely hostile. And the determ

Transcription Notes:
Changed the page number to top - consistent with rest of project and it also seems to be placed slightly above title. Not sure it is Trill. That makes sense but the written word doesn't seem to have either the r or the i - might be shorthand for trill but we're supposed to transcribe what is actually written. Might be Trll? Reply re Trll: for sure, the literature on primate vocalization talks of Trills, so this is clearly some sort of abbreviation - either Trll or Tll.