Sentence:  Here, in the transept and choir, where the service was being held, one was conscious every moment of an increasing brightness; colours glowing vividly beneath the circular chandeliers, and the rows of small lights on the choristers' desks flashed and sparkled in front of the boys' faces, deep linen <WSD>collars</WSD>, and red neckbands. 
Meaning of the word marked with <WSD> tags:  The part of an upper garment (shirt, jacket, etc.) that fits around the neck and throat, especially if sewn from a separate piece of fabric.