Drawing depicting: Cyanistes cyanus -- Azure Tit. Alternate name on piece: Parus cyanus, Tracing on tissue. Something of a mystery. There is nothing in the drawing to suggest Mrs. Gould's skilled hand. The tracing fits the published plate almost exactly and is not reversed; it is probably the only tissue in the collection connected with such an early plate date. It might be a tracing from the published plate for some unknown purpose.