What has the author William Blacker written?

William Blacker has written:

'Blacker's art of flymaking, &c, comprising angling, & dyeing of colours, with engravings of salmon & trout flies, shewing the process of the gentle craft as taught in the pages' -- subject(s): Artificial Flies, Fishing, Flies, Artificial

'Blacker's catechism of fly making, angling and dyeing' -- subject(s): Artificial Flies, Flies, Artificial, Fly casting