Bok globules are the smallest and simplest molecular clouds
 capable of forming new stars. Past work using the IRAS data base has
 helped to identify samples of nearby globules with infrared signatures
 of current embedded star formation. Perhaps equally important, IRAS
 data have been used to identify Bok globules which appear to not have
 embedded star formation. Subsequent studies of this STARLESS sample of
 globules have been initiated, with the goal of characterizing the
 physical conditions of these simple clouds before stars have formed.
      However, IRAS was not able to detect all low mass stars, and
 the quality of the starless sample of Bok globules is unknown, if not
 suspect.
      Using ISO with the ISOCAM instrument, we propose to conduct a very
 deep search for stars in the "starless" globule sample. The detection
 limit is set so that any hydrogen burning star or any YSO will be
 clearly identified within the globule cores and very near envelopes.
      The results of such a search will be analyzed in order to:
 1) establish a bona fide sample of truly starless Bok globules;
 2) determine the star formation rates and efficiencies for stars in the
    0.08 - 0.7 solar mass range (fainter than IRAS, but detectable by
    ISO) for the globules here found to contain low-mass stars; and
 3) test for low-mass stellar clustering in Bok globules to see if
    such clustering is universal in star forming regions.

      This survey will be conducted using the ISOCAM instrument in the
 LW2 (6.75 micron) and LW3 (15 micron) filters in a micro-stepping map
 mode to return maps of 3 arcsecond resolution (PFOV) over areas of
 3.7 x 3.7 arcmin square.