The butler can’t be the murderer because he was in London that evening.

Mytilus pellucidus. Thin , transparent , with purple and blue longitudinal fasciæ. Inhabits England . Found in Anglesea , sometimes in oyster beds, sometimes in trowling over slutchy bottoms

A ninety-second of 1840 is 20.

I marvell'd ſhe ſung ſo ſmall indeed, being no Maid.