Illustrated, cloth extra, $1.50 "One of the freshest, most scientific, and at the same time, most popular and delightful books of the kind we have ever read."-- _St.
John's Telegraph._ V.
THE LIFE AND JOURNALS OF JOHN J.AUDUBON, THE NATURALIST.

Comprising narrations of his expeditions in the American Forests, &c.

12mo., cloth extra, gilt top, $2.25 "It is a grand story of a grand life, more instructive than a sermon, more romantic than a romance."-- _Harper's Magazine._ -- Any of the above sent, postpaid, on the receipt of price.
Putnams' Series of Popular Manuals.
HALF-HOURS WITH THE MICROSCOPE.
By EDWIN LANKESTER, M.D., F.R.S.Illustrated by 250 Drawings from Nature.

12mo, cloth, $1.25.
"This beautiful little volume is a very complete manual for the amateur microscopist.

* * * The 'Half-Hours' are filled with clear and agreeable descriptions, whilst eight plates, executed with the most beautiful minuteness and sharpness, exhibit no less than 250 objects with the utmost attainable distinctness."-- _Critic._ HALF-HOURS WITH THE TELESCOPE: Being a popular Guide to the Use of the Telescope as a means of Amusement and Instruction.