experimental knowledge; but the instances are chiefly of such as have
turned their genius to good account, or for the benefit of themselves
and their fellow men. We call such men the _honourables of the land_,
whose examples should be written in letters of gold, and on monuments
of marble, as helps to social duties and for the imitation of after
times.

We have marked for our next number a few extracts which will be
interesting to our readers to explain the mode by which the heads of a
chapter are illustrated. The biographettes of John Hunter, Simpson, J.
Stone, and Fergusson, and the introductory illustrations of Newton,
are the most striking portions of the volume; and they maybe read and
re-read with increasing advantage. Of Hunter and Fergusson there are
good portraits.

* * * * *




SPIRIT OF DISCOVERY.

* * * * *


_Block Machinery._


Mr. Faraday has lately described at the Royal Institution, Brunel's
Block Machinery at Portsmouth, with a set of magnificent models of