AMERICAN TREES AND PLANTS, used for medicinal and economical purposes and employed in the Arts, with numerous engravings; by Professor JACOB BIGELOW, Author of Plants of Boston,' Medical Botany,' &c. &c.

MORAL EFFECTS OF INTERNAL IMPROVEMENTS, by ROBERT RANTOUL, Jr., Esq.

LIVES OF THE REFORMERS, by Rev. ROMEO ELTON, Professor of Languages in Brown University.

BIOGRAPHICAL SKETCHES OF DISTINGUISHED FEMALES, by Mrs. EMMA C. EMBURY, of Brooklyn, N. Y.

SKETCHES OF AMERICAN CHARACTER, by Mrs. SARAH J. HALE, Editor of the Ladies' Book,' Author of the 'Ladies' Wreath,' Flora's Interpreter,' &c. &c.

DO RIGHT AND HAVE RIGHT, by Mrs. ALMIRA H. LINCOLN PHELPS, Principal of the Literary Department of the Young Ladies' Seminary, at West Chester, Pa., formerly of the Troy Seminary, N. Y., Author of 'Familiar Lectures on Botany,' Female Student,' &c.

The object of this Work may be gathered from the following remarks of Mrs. Phelps. "A popular work on the principles of law, with stories illustrating these principles, might be very profitable to people in common life, as well as to children. The ward cheated by a guardian, the widow imposed on by administrators or executors, the wife abandoned by a husband, with whom she had trusted her paternal inheritance, the partner in business, overreached by his crafty associate, for want of a knowledge of the operations of the law,—all these might be exhibited in such a way as to teach the necessity of legal knowledge to both sexes, and to all ages and classes."

SCENES IN THE LIFE OF JOANNA OF SICILY, by Mrs. E. F. ELLET, of Columbia, S. C.

This is written with a view to young readers, and for the purpose of illustrating important historical events.

The Publishers have also in preparation for this Series, a History of the United States, and of other Countries, a History of the Aborigines of our Country, a History of Inventions, Works on Botany, Natural History, &c. &c. Many distinguished writers, not here mentioned, have been engaged, whose names will be in due time announced, although at present, we do not feel at liberty to make them public.

Among the works prepared, and in a state of forwardness, for the Juvenile Series are the following, viz.

MEANS AND ENDS, OR SELF TRAINING, by Miss CAROLINE SEDGWICK, Author of The Poor Rich Man, and Rich Poor Man,' Live and Let Live,'' Home,' &c. &c. NEW-ENGLAND HISTORICAL SKETCHES, by N. HAWTHORNE, Author of Twice Told Tales,' &c. CONVERSATIONS AND STORIES BY THE FIRE SIDE, by Mrs. SARAH J. HALE,

FAILURE NOT RUIN, by HORATIO G. HALE, A. M. TALES IN PROSE, blending instruction with amusement; by Miss MARY E. LEE, of Charleston, S. C.

PICTURES OF EARLY LIFE:-Stories; each inculcating some moral lesson; by Mrs. EMMA C. EMBURY, of Brooklyn, N. Y.

FREDERICK HASKELL'S VOYAGE ROUND THE WORLD, by H. G. HALE, A. M., Philologist to the Exploring Expedition.

BIOGRAPHY FOR THE YOUNG, by Miss E. ROBBINS, Author of American Popular Lessons,' Sequel to the same, &c.

THE WONDERS OF NATURE, by A. J. STANSBURY, Esq., of Washington City; illustrated by numerous cuts. WORKS OF ART, by the same; illustrated by numerous cuts.

PLEASURES OF TASTE, AND OTHER STORIES Selected from the Writings of JANE TAYLOR, with a sketch of her life, (and a likeness,) by Mrs. S. J. HALE.

SELECTIONS FROM THE WORKS OF MRS. BARBAULD, with a Life and Portrait.

SELECTIONS FROM THE WORKS OF MARIA

EDGEWORTH, with a Life and Portrait.

SELECTIONS FROM THE WORKS OF MRS.

SHERWOOD, with a Life and Portrait.

SELECTIONS FROM THE WORKS OF DR. AIKIN, with a Sketch of his Life, by MRS. HALE.

CHEMISTRY FOR BEGINNERS, by BENJAMIN SILLIMAN, Jr., Assistant in the Department of Chemistry, Mineralogy, and Geology in Yale College; aided by Professor

SILLIMAN.

MY SCHOOLS AND MY TEACHERS, by Mrs. A. H. LINCOLN PHELPS.

The author's design in this work, is to describe the Common Schools as they were in New-England at the beginning of the present century; to delineate the peculiar characters of different Teachers; and to give a sketch of her various school companions, with their progress in after life, endeavoring thereby to show that the child, while at school, is forming the future man, or woman.

It is not the intention of the Publishers to drive these works through the Press with an undue speed, in the hope of securing the market, by the multiplicity of the publications cast upon the community; they rely for patronage, upon the intrinsic merits of the works, and consequently time must be allowed the writers to mature and systematize them. The more surely to admit of this, the two Series will be issued in sets of five and ten volumes at a time. Besides the advantage above alluded to, that will result from such an arrangement, it will place THE SCHOOL LIBRARY within the reach of those Districts, which, from the limited amount of their annual funds, would not otherwise be enabled to procure it.

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The works will be printed on paper and with type expressly manufactured for the Library; will be bound in cloth, with goat-skin backs having gilt titles upon them, and, for greater durability, cloth hinges inside of the

covers.

The larger Series will be furnished to Schools, Academies, &c., at seventy-five cents per volume, and the Juvenile Series at forty cents per volume; which the Publishers advisedly declare to be cheaper, than any other series of works that can be procured at home or abroad, bearing in mind their high intéllectual character, and the style of their mechanical execution.

The Publishers solicit orders from School Committees, Trustees, Teachers, and others, for either or both Series, and wish particular directions how, to whom, and to what place, the books shall be forwarded.

Annexed are Specimen Pages of the two Series.

As

carried into the reservoir, and they fill it half full of water, C; the mouth of the pipe, D, which is to convey away the water, reaches into the water in the reservoir. the water rises, the air is compressed so that, although the pumps act alternately, the elasticity of the contained air acts uninterruptedly in pressing on the surface of the water, and raising it by the tube, D, in an equable stream. The elasticity of the contained air, fills up the interval between the actions of the pumps, and admits of no interruption to the force with which the water is propelled upwards.

Surely these are sufficient indications of the necessity of three powers acting in propelling the blood from the heart. The first, is a sudden and powerful action of the ventricle the second, is a contraction of the artery, somewhat similar, excited by its distention: the third, though a property independent of life, is a power permitting no interval or alternation; it is the elasticity of the coats of the artery: and these three powers, duly adjusted, keep up a continued stream in the blood-vessels. It is true, that when an artery is wounded, the blood flows

The superior sagacity of animals which hunt their prey, and which, consequently, depend for their livelihood upon their nose, is well known in its use; but not at all known in the organization which produces it.

The external ears of beasts of prey, of lions, tigers, wolves, have their trumpet-part, or concavity, standing forward, to seize the sounds which are before themviz., the sounds of the animals which they pursue or watch. The ears of animals of flight are turned backward, to give notice of the approach of their enemy from behind, whence he may steal upon them unseen. This is a critical distinction, and is mechanical; but it may be suggested, and, I think, not without probability, that it is the effect of continual habit.

The eyes of animals which follow their prey by night, as cats, owls, &c., possess a faculty not given to those of other species, namely, of closing the pupil entirely.