Our au- thor seems to have a most rooted aversion to every thing in the shape of an index : a deficiency of this kind we hope to see supplied, should a second edition of the work be called for.

Ere that time arrives, he would do well to revise and correct his pages, carefully purging them of those not unfre- quent blemishes of style and expression, at which we have already hinted.

We would entreat him, also, to send forth his offspring into the world decked in a somewhat more chaste and suitable, that is, a less gaudy, attire.

This done, there would remain little, save the title of the book, to give us offence, and we might say, with Juliet : Catalogue of Works on Natural History, lately published , tvith some Notice of those considered the most interesting to British Naturalists Anon.

: First Report of the Proceedings, Recommendations, and Transactions of the British Association for the Ad- vancement of Science.