  The Japanese-American Cooperative Emulsion Experiment (JACEE) has recently
carried out a series of Antarctic circumpolar balloon flights (JACEE-10 ~
JACEE-13) for the study of high energy elemental composition and energy spectra
of cosmic rays. The total exposure factor of these experiments is 663 m**2-hr,
which is about twice the cumulative exposure from JACEE-1 through JACEE-8.
Preliminary results from the Antarctic flights have been included in the
cumulative JACEE spectrum.
