colo(u)r fastness to formaldehyde

acetyl-CoA-synthetase american school of political economy brassica campestris chinensis purpuria easy processing agent equal pay for equal work faubourgs income effect letter of regret precious metals problem language reed-wren rennet (or abomasum) required study sacker auger scanning proton microprobe sebaceous cell single-pole knife switch statistical error thixotropic sediment Valdecaballeros