  We report on observations of the two persistent black hole candidates LMC X-3
and LMCX-1 performed with \BS in October 1997. The flux of LMC X-1 was possibly
measured up to 60 keV, but there is a possible confusion with PSR 0540-69. Fits
with an absorbed multicolor disk black body are not satisfactory, while the
superposition of this model with a power law is acceptable. The sources showed
little variations during the observations. However in LMC X-1 some X-ray color
dependence on intensity is apparent, indicating a hardening of the spectrum in
the second half of the observation. The inner disk radius and temperature
change, featuring the same (anti)correlation found in {\it RXTE} data (Wilms et
al. 2000). QPOs were searched for. In LMC X-3 none was detected; in LMCX-1 a 3
sigma upper (9% rms) limit is given at 0.07 Hz, the frequency of the QPO
discovered with Ginga.
