The Optical Gravitational Lensing Experiment (OGLE) is a long term
project with the main goal of searching for dark matter in our Galaxy by
identifying microlensing events toward the galactic bulge
(Udalski et al. 1992, 1994). At times the bulge is unobservable we conduct other
long-term photometric programs.
A complete list of side-projects attempted by the OGLE team
can be found in Paczyński et al. (1995).
In particular, during the observing seasons 1993, 1994 and 1995 we
monitored globular clusters NGC 104=47 Tuc and NGC 
Cen
in a search for
variable stars of various types. Of primary interest was the detection of
detached eclipsing binaries. In Papers I, II & III
(Kaluzny et al.
1996, 1997a,b) we
presented results for 
Cen. Here we report on
variables discovered in the field of 47 Tuc.