price 6s.

PROFESSOR HUNT'S MANUAL OF PHOTOGRAPHY. Fourth Edition revised.

London and Glasgow: RICHARD GRIFFIN & CO.

* * * * *

TO ETHNOLOGISTS.--MESSRS. TRUEBNER & CO. are preparing for immediate
Publication, in one volume, 4to., 650 pp. profusely illustrated. price 1l.
12s., GLIDDON'S TYPES OF MANKIND; or Ethnological Researches, based upon
the Ancient Monuments, Paintings, Sculptures, and Crania of Races, and upon
their Natural, Geographical, Philological, and Biblical History. By J. C.
NOTT, M.D. and G. R. GLIDDON, formerly U.S. Consul at Cairo.

Gentlemen desirous of becoming Subscribers are requested to send their
Names in as early as possible.

Illustrated Prospectus to be had on application.

TRUEBNER & CO., 12. Paternoster Row.

* * * * *

Just published, with ten coloured Engravings, price 5s.,

NOTES ON AQUATIC MICROSCOPIC SUBJECTS OF NATURAL HISTORY, selected from the
"Microscopic Cabinet." By ANDREW PRITCHARD, M.R.I.

Also, in 8vo., pp.720, plates 24, price 21s., or coloured, 36s.,

A HISTORY OF INFUSORIAL ANIMALCULES, Living and Fossil, containing
Descriptions of every species, British and Foreign, the methods of
procuring and viewing them, &c., illustrated by numerous Engravings. By
ANDREW PRITCHARD, M.R.I.

"There is no work extant in which so much valuable information
concerning Infusoria, (Animalcules) can be found, and every
Microscopist should add it to his library."--_Silliman's Journal._

London: WHITTAKER & CO., Ave Maria Lane.

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{366}

THE MANUAL OF SCIENCE AND ARTS, AND PHOTOGRAPHIC MISCELLANY.

NO. II. ON MAY 1ST, Containing Twenty-four Pages of Letterpress, Two
Lithographic Plates, and Numerous Woodcuts.

A Second Edition of No. I. in the Press.

MONTHLY, PRICE SIXPENCE.

London: WHITTAKER & CO.

* * * * *

THE BRITISH GALLERY OF HISTORICAL PORTRAITS; being a Collection of about
Three Hundred Authentic Portraits, Autography, Seals, Letters, &c., of
Royal and Illustrious Personages in English History and Literature, from
the year 1420 to 1750, including many that are not to be found in any other
Collection; comprising the whole of the Series of British Autography
formerly published by MR. J. THANE, with Additional Portraits, Facsimiles,
and Biographical Sketches (only Fifty Sets published). 4 vols. imperial
8vo.,