We present the first tentative detection of spinning dust emission from specific astronomical sources .
All other detections in the current literature are statistical .
The Green Bank 140 foot telescope was used to observe 10 dust clouds at 5 , 8 , and 10 { ~ { } GHz } .
In some cases , the observed emission was consistent with the negative spectral slope expected for free-free emission ( thermal bremsstrahlung ) , but in two cases it was not .
One H II region ( LPH 201.663+1.643 ) yields a rising spectrum , inconsistent with free-free or synchrotron emission at the \sim 10 \sigma level .
One dark cloud ( L 1622 ) has a similar spectrum with lower significance .
Both spectra are consistent with electric dipole emission from rapidly rotating dust grains ( “ spinning dust ” ) , as predicted by Draine & Lazarian .

Subject headings : cosmic microwave background — diffuse radiation — dust , extinction — ISM : clouds — radiation mechanisms : thermal — radio continuum : ISM