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 more every year how much he has yet to learn," proceeds upon the opposite principle. Indeed, the author goes so far as to say that when teachers are ignorant they should not have any false pride or pretension about it, but should honestly and openly admit their ignorance. His language is, "When children ask their teacher for information on subjects with which he has little or no acquaintance, he should not be ashamed of frankly owning his ignorance." This is sensible talk, and those who like it will find much more of the same sort in the volume, which will furnish many hints worth the attention of practical teachers.

name of this author is so well and favorably known as to make any commendation of his work on our part superfluous. He deals with modern questions in the spirit of liberal, often of radical criticism, and his opening discussions on "Democracy" and on "Equality," from the point of view of an independent English thinker, will have interest for intelligent American readers. The London "Athenæum" remarks of the volume: "One feels that these essays are Mr. Arnold, and that the lesson they convey as a whole is more precious than any single principle expressed throughout them. It is the lesson of courtesy, gentleness, and toleration. The stern practical nature of life in the nineteenth century and the controversial fierceness which is at once the strength and the misfortune of Englishmen could have no better foil than this high-souled preacher, who has continually reminded us, by his own example, of the supreme value of noble conduct and high demeanor."

Notes of a Naturalist on the Challenger. By H. N. Moseley. London and New York: Macmillan. 1879. Pp. 36. $7.50.

The Wyandotte Cave. By J. P. Stelle. Cincinnati: Moore, Wilstach & Baldwin. 1864. Pp. 85.

Etymological Dictionary of the English Language. By W. W. Skeat. Oxford: Clarendon Press. Parti., A—Dor. 1879. Pp. 176. 10s. 6d.

The Coal Trade. By F. E. Saward. New York: The Author. 1879. Pp. 73.

Practical Treatise on the Combustion of Coal. By W. M. Barr. With Plates. Indianapolis: Yohn Brothers. 1879. Pp. 315. $2.50.

Dictionary of Music and Musicians. London and New York: Macmillan. Part VI. 1879. Pp. 127.

The Art of Singing. By F. Sieber. New York: W. A. Pond & Co. Pp. 175. 1879.

L'Assommoir. By E. Zola. Philadelphia: Petersons. 1879. Pp. 380. 75 cents.

Progressive Japan. By General Le Gendre. San Francisco: A. L. Bancroft & Co. 1879. Pp. 370.

"Baptist Review." Quarterly. Cincinnati: J. R. Baumes. Vol. I. No. I. Pp. 172.

The Art of Figure-Drawing. By C. H. Weigall. New York: Putnam's Sons. 1879. Pp. 53. 50 cents.

Trial of D. M. Bennett. New York: "The Truth-Seeker." 1879. Pp. 189.

Haeckel's "Genesis of Man": a Review. By L. F. Ward. Philadelphia: E. Stern & Co. Pp. 64.

Supplementary Report on Sewer Air. By W. R. Nichols.

Sound Money. By D. A. Hawkins. Pp. 4.

Mothers' Marks. By Dr. Pv. Park. Pp. 13.

Üeber das von glüheudem Platin ausgestrahlte Licht. Von Edward L. Nichols, Ph. D. Göttingen-Die Universitäts-Buchdruckerei von E. A. Huth. 1879. Pp. 58, with Plaies.

On the Complete Series of Superficial Geological Formations in Northeastern Iowa. By W. J. McGee. From "Proceedings of the American Association for the Advancement of Science." Pp. 36.

Wall Rocks of the Bodie Auriferous Lodes. By M. Attwood. From "Proceedings of the California Geological Society." Pp. 3.

On an Improved Form of Gold-washer's Prospecting Bowl. From the "Alta California." By the same Author. Pp. 16.

Proposed Legislation on the Adulteration of Food and Medicine. By E. R. Squibb, M. D. New York: Putnam's Sons. 1879. Pp. 57. 25 cents.

All about the Plum Curculio. By J. B. Stelle. Mobile: "Register" print. 1878. Pp. 14.

Double Stars. By S. W. Burnham. From "American Journal of Science and Arts." Pp. 7.

Bigamy and Polygamy. Pp. 33.

The School Garden. By E. Schwab. New York: Holbrook & Co. 1879. Pp. 92. 50 cents.

Word and Work. By P. G. Robert. St. Louis: W. B. Chittenden. 1879. Pp. 29.

Evolution and Human Anatomy. By S. E. Chaille. New York: Trow print. 1879. Pp. 21.

Heroes, Honors, and Horrors. Yellow Fever of 1878. By J. P. Dromgoole. M. D. Louisville, Ky.: Morton print. 1879. Pp. 176. 50 cents.

Catalogue of Plants in the Vicinity of Cincinnati. By J. F. James. Cincinnati: Barclay print. Pp. 27.

Mineral Locality in Fairfield County, Connecticut. By G. J. Brush and E. S. Dana. From "American Journal of Science and Arts." Pp. 10.

House of Representatives. Report of National Academy of Sciences. Pp. 25.

Method of Study in Social Science. By W. T. Harris. St. Louis: Jones print. Pp. 23.