  We present a measurement of the temperature-polarization angular cross power
spectrum, <TE>, of the Cosmic Microwave Background. The result is based on
$\sim 200$ hours of data from 8 polarization sensitive bolometers operating at
145 GHz during the 2003 flight of BOOMERANG. We detect a significant <TE>
correlation in the $\ell$-range between 50 and 950 with a statistical
significance > 3.5 sigma. Contamination by polarized foreground emission and
systematic effects are negligible in comparison with statistical uncertainty.
The spectrum is consistent with previous detections and with the "concordance
model" that assumes adiabatic initial conditions. This is the first measurement
of <TE> using bolometric detectors.
