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[[circled]] 8 [[/circled]]
[[underlined]] Cebus capucinus [[/underlined]], Nov. 13, 1958, IV. 

[[3 straight lines and 1 scribbled line are running vertically down the left margin]]

but are definitely quavering.  I shall call these B Trlls.

It is also my impression that the Capuchin uttered a few "pure" Trll's during the same incident.  Sounded much like the P Trlls but even louder.  Perhaps the highest intensity form of "pure" Trlls.  I shall call them "T Trlls".

I am not sure exactly how the motivation of the "Trll complex" as a whole differs from that of the "B complex" as a whole.  I thought that the ordinary low intensity Trlls were produced by a relatively stronger escape componenet that the MGB's; and it is possible that the higher intensity forms of Trll differ from the higher intensity forms of B in the same way.  But the AlB's seem to be such a strongly alarm pattern that I am beginning to wonder.  In any case, the problem must be checked very thoroughly.


[[underlined]] Cebus capucinus [[/underlined]], I
November 14, 1958
Barro Colorado

When I went into the small cage where this Capuchin is confined now, early this morning, he was greatly upset and ran back & forth, but was almost completely silent.  He only uttered a single MGB.  Most of the time he ran around with his mouth wide open, just as during the Screaming yesterday, but without any trace of a sound.  This would seem to indicate that the opening of the mou