,
may now be had at the MANUFACTORY, 65. CHEAPSIDE. Superior Gold London-made
Patent Levers, 17, 15, and 12 guineas. Ditto, in Silver Cases, 8, 6, and 4
guineas. First-rate Geneva Levers, in Gold Cases, 12, 10, and 8 Guineas.
Ditto, in Silver Cases, 8, 6, and 5 guineas. Superior Lever, with
Chronometer Balance, Gold, 27, 23, and 19 guineas. Bennett's Pocket
Chronometer, Gold, 50 guineas; Silver, 40 guineas. Every Watch skilfully
examined, timed, and its performance guaranteed. Barometers, 2l., 3l., and
4l. Thermometers from 1s. each

BENNETT, Watch, Clock, and Instrument Maker to the Royal Observatory, the
Board of Ordnance, the Admiralty, and the Queen,
65. CHEAPSIDE.

* * * * *

POPULAR SCIENCE.

* * * * *

NEW WORK BY PROFESSOR JOHNSTON.

* * * * *

THE CHEMISTRY OF COMMON LIFE.

By JAMES F. W. JOHNSTON, M.A. F.R.SS. L. & E., &c.

Author of "Lectures on Agricultural Chemistry and Geology," "A Catechism of
Agricultural Chemistry," &c.

* * * * *

It is the object of the Author to exhibit in this Work the present
Condition of Chemical Knowledge and mastered Scientific Opinion upon the
subjects it treats of. The reader will not be surprised, therefore, should
he find in it some things which differ from what is to be found in other
Popular Works already in his hands, or on the shelves of his Library.

It will be issued in MONTHLY NUMBERS, in the following order:

1.--The AIR we Breathe.
The WATER we Drink.

2.--The SOIL we Cultivate.
The PLANT we Rear.

3.--The BREAD we Eat.
The BEEF we Cook.

4.--The BEVERAGES we Infuse.

5.--The SWEETS we Extract.
The LIQUORS we Ferment.

6.--The NARCOTICS we Indulge in.

7.--The ODOURS we Enjoy. The SMELLS we Dislike.

8.--What we BREATHE and
BREATHE For.
What, How, and Why we
Digest.

9.--The BODY we Cherish.
The CIRCULATION of
MATTER, a Recapitulation.

*** Nos. 1 & 2. are published, price Sixpence each.

* * * * *

WILLIAM BLACKWOOD & SONS, Edinburgh and London.

* * * * *

SURREY ARCHAEOLOGICAL SOCIETY.

PRESIDENT.--His Grace the Duke of Norfolk.

Gentlemen desiring to join the Society, are informed that Copies of the
Rules, List of Members (upwards of 250), and Forms of Applicatio