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[[circled]] 53 [[/circled]]
[[underlined]] Ateles [[/underlined]] ssp, Nov. 1, 1960 II.

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A few Squ notes and lots of screams. These Squ notes were all (or almost all) short and simple.  Apparently low intensity indicators or intention movements of the screams. The screams themselves were quite variable. No determinate length. The higher-pitched, shriller, screams were apparently higher intensity, in some sense; uttered when an animal was handled particularly roughly.
Both C and D also uttered [[Tills?]] or [[Till?]]-like notes when handled roughly. These were relatively rare, and not very distinct.  They [[underlined]] did [[/underlined]] appear to be little or nothing more than "intermediates"  between the brief Squ's and the more prolonged screams (see comments p. 47). Very little [[image -  horizontal line with vertical waves]] quality. 
All these patterns, the brief Squ's, indistinct [[Tills?]], and "indeterminate" screams [[underlined]] appeared [[/underlined]] to be very strongly hostile. 
During short intervals between being handled, both C and D did some silent PL to me. This was definitely silent. Also appeared to be purely hostile. 
Then I separated C and D, put them on the floor in different rooms, and left them alone. They immediately began to behave in a most unexpected way. 
Each animal sat on the floor, without moving very much at first, looking rather "puzzled".  Then each began to utter Squ's, or, much more frequently, WW's of one type or another. Some of the WW's were quite simple [[image - straight line indicating vocalisation]]; but more of them were definitely [[underlined]] fluctuating. [[/underlined]].  The fluctuating WW's might be transcribed by something like "Whee hee hee."  Sometimes were more "syllables."  Even the most extremely quavering or fluctuating WW's, however, did not have anything like the rapid rate lung quality of [[Till?]] patterns.  Very slightly after beginning the Squ and WW patterns, both animals began to utter single screams.  These Screams