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EASY LETTERING.By J. H. CB-OMWELL9 Ph.B.

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BOOKS: How to get them. If there to anyboolc or pamphlet that you rat, trite to the S3cienceBook Agelley, 47 Lafayette Place, New Yorkr.

SCIENCE. [Voi.. XVIII. NO. 439I2

calmmethods. Each' rule is illustrated by one orI,more ]practicalproblems, with a detailed solution -of each one. There is also anextensive series, of tables, covering pretty thoroughly the field ofelectrical work. It may be added, that, in additio-n to the arith-metical solutions of the problems, there is given after each rule,wherever practicable anad useful, the usual algebraic formula.- In the Century for JulyT Professor Edward S. Holden of the

Lick Observatory has a paper on popular astronomy, entitled, '1 ALunar Landscape," with pictures from negatives taken at the LickObservatory.

In their series of introductory scieince texct-bookss, Macmillan&5 Co. have published 'tAn Introduction to the Study of Botany,"by Edward Aveling, fellow of University iCollege, London. Thevolume is intended as a guide to the study of botany, and assumeson the part of the reader no knowledge of the subject. While inits general pla-n the work is based on the syllabus of the scienceand art department at 'South Kensington, it cannot fail to provebelpful to all who take up the study of botany, no matter whatspecial end they m:ay bave in view. The book bas 271 illustrations,and a glossary of over six hundred words. A novel feature is thatthe pronunciation in English is given of every Greek work used toshow the derivation of the botanical terms.

-Henrv Hfolt &Co. will publish early in Septemnber a complete"Texrt-Book of Elementary Physics,"' chiefly exp,erirr'ental, byEdwin H. Hall, assistant professor of physics in IHarvard College

Tm agitation in the religious world has now come around tothe point which is treated in "1 An Honest Hypocrite," a novel bythe. Rev. E. !Staats DeGrote Tompkins, published by the CassellPublishing Co,

-G. P. Putnam's Sons have jUst issued '1 Politics and Property;or,- Phronocracy," a treatise on a compromise between democracyand plutocracy, by Slack Wortbinagton.

Professor Lanciani contributes to the July number of theAtlantic Monthly a paper on "1 Underground Cbristian Rome," in,.whic,h be tells of the discovery of the Cbristianity of an ancientRoman family from the excavation of their ancient bur.ial place.This is followed by "1 The Old Rome and the New," sufficientlydescribed in its title, by Mr. W. J. StillmaDi; a paper by BradfordTorrey on the II Male Ruby-Tbroat; " the II Story of a Long In-heritance," by William M. Davis, wbhich, thoughi no one wouldever suspect it, is devoted to tornadoes. Mr. Nathaniel SouthgateShaler's paper on "1 College Examinations," which will exrcite re-mark, is among the other features of the numnber.

-A valuable book for all interested in the numerous applica-tions of electricity is T. O'Conor Sloaine's II Arithmetic of Elec-tricity " (New York, Henley & Co. $1. ). It is a practical treatiseon electrical calculations of all kinds, reduced to a series of rulesin simple form, and involving only the use of ordinaray arithmeti-

"The Week, one of the ablest papers on the con-tinent."1-Descriptive America.

THE WEEK,A Canadian Journal ofPolitics, Literature, Science

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Publications of the University of Pennsylvania.SERIES IN

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Vol. I. now ready.1. Poetic 'andVerse Criticism of the Reign of Eliza-

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2. A Fragment of the Babylonian ', Dibbarrall Epic.By Morris Jastrow, Jr., Ph.D., Professor ofArabic. 60 cents.

Ss. a. Ilpos with the Accusative. b. Note on a Pas,sae in the Antigone. BY William A. LambertonA.R., Professor of the Greek Language and Lit-erature. 50 cents.

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In preparation.The Terrace at Persepolis. By MIorton W. Easton,

Ph.D., Professor of Comparative Philology.An Aztec Mlanuscript. By Daniel. G. Brinton, Mi.D.,

Professor of American Archfeology and Linguis-tics.

A M{onograph on the Tempest. By gorace HowardFulrness, Ph.D., LL.D.

Recent Archfeological Explorations in N;ew Jersey.By Charles C. Abbott, M.D., Curator of theAmerican Collections.

Archsoological Notes in Northern M^orocco. By Tal-cott WWllams, A.MS., Secretary of the Museumof Egyptian Anttquities.

a. On the Aristotelian Dative. b. On a Passage inAristotle's Rhetori¢. By William A. Lamberton,A.M^., Professor of the (}reek Language andLiterature.

A Rebrew Bowl Inscription. By lMorris Jastrow,IJr., Ph.D., Professor of Arabic.

The Life and Writings of Glsorge Gascoigne. ByFelix: E. Schelling, A.M., Assistant Professor orEnglish Literature.

The Papers of this Series, prepared by Professorsand others connected with the UTniversity of Penn-sylvania, will take the fo:rm of M^onographs on thesubjects of Philology, Literature, and Arcebology,w'hereof about 200 or 250 pages will form a volume.The,Price to subscribers to the Series will be $1.50

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AMERICAN GEOLOGIST FOR 1891AND

BIEN'S NEW. ATLAS OF THE METROPOLI-TAN DISTRICT,

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JULY 3, 1891.1 SCIENCE. 13and Joseph Y. Bergen, Jun., instructor in the Boston English High dre Theuriet, the editor of the " Journal of Marie Bashkirtseff,"School. This book will contain, among other things, the forty has edited these letters also. The book is uniform in typographyrequired experiments mentioned in the Harvard pamphlet, and and binding with the " Journal," and contains new portraits ofcuts from photographs of some of the more novel elementary ap- Marie, with reproductions from her sketches, besides other illus-paratus actually in use in the Harvard College physical laboratory. trations.The same publishers also have in press an " Elementary Labora- - D. C. Heath & Co., Boston, will issue very soon, "Studies intory Physicsd " for igh schools, by Charles R. Allen of the New United States History," for use in grammar schools, by MaryBedford High School.

Sheldon Barnes, author of the " Studies in General History," and- Macmillan & Co., the publishers of Mr. Joseph Pennell's Earl Barnes, professor of history in Stanford University, Califor-

"Pen Drawing and Pen Draughtsmen," will issue in July a book nia.by the same author, descriptive of the River Thames, under the - Forthe New England Magazine for July, Professor J. L. Ewelltitle " The Streamn of Pleasure."-'othNeEnln cgaiefrJy,Pfsor.L.Evlof Howard University, Washington, writes on " Scliliemann's

-Cassell Publishing Co. have ready " The Letters of Marie Discoveries in Hellas; " and William M. Salter, in " Enmerson'sBashkirtseff," which, by special arrangement with AMadame Bash- Views on Reform," shows what a radical the Concord plilosopherkirtseff, the mother of the writer, and the French publishers, are was, and how few of the most advanced reformers of to-day arepublished in this country before their appearance in France. An- as advanced as he was in hiis ideas of social comity.

POPULAR MANUAL OFVISIBLE SPEECH AND Speech Reading and ArticulationVOCAL PHYSIOLOGY.

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PRIZE ESSAYS OF THE AMERICAN PUBLIC Price, 225 Cents.ns: v ) no AHEALTH ASSOCIATION. Practical Instructions in the Art of Reading

Practical Sanitary and Economic Cooking Adapt- Speech from the Mouth; and in the Art ofed to Persons of Moderate and Small Means. By Teaching Articulation to the Deaf.MRS. MARY HINMAN ABEL. 12mo, 182 pp. Cloth, [This Work-written at the suggestion of Miss

I he phosphates of the system 40 ceints. Sarah Fuller, Principal of the Horace Mann SchoolNo.4. Healthy Homes and Foods for the Work- for the Deaf, Boston, Mass.-is, so far as known, theare consumed with every effort, ~ing-Classes. By Professor C. Vaughan, M.D.'are consumed with every effort, AIDn Arbor, Mich. 8vo, 62 pp. Paper, 10 cents. flrst Treatise published on "Speech Reading."]

No 2. The Sanitary Conditions and Necessities of -Prom Principtals ofInstitutions forthe Deaf.and exhaustion usually lndlcates School-Houses and School-Life. By D. F. Lin- "1Admirable in its conciseness, clearness and free-coin, M.D., Boston, Mass. 8vo, 38 pp. 5 cents. dom from technicality."

a lack of supply. The Acid No. 3. Disinfection and Individual Prophylaxis The simplicity and perfection of this little book.against Infectious Diseases. By George M. .

Phosphate supplies the phOS_ Steriiberg M.D., Major and Surgeon U.S.A. 8vo, "Full of exact and helpful observations."Phshte spleph 40 pp. Paper, 5 cents. "A very iDteresting and valuable work."uryl"The rules are clearly given and will be of greatphates, thereby relievinor ehauS- No. 4. The Preventable Causes of Disease, Injury, utilt."ekandDeath in American Manufactories and "Every articulation teacher should study it."~~~~~~~~~~~Workshops,and the Best Means and Appliances "A model of clearness anid simplicity, withouttion, and increasing the capacity fr Preventing and Avoiding Them. By George having any of the puzzling symbols that trouble theH Ireland, Springfield, Mass. 8vo, 20 pp. Paper, common mind.. . . The exercises given in speech-5cents, reading from th isare especially interesting, andfor labor. Pleasant to the taste. The four essays (Nos. 1, 2, 3, 4) in one volume of of reat importance for the student of phonetics."

nearly two hundred large octavo pages, thoroughly - Modern Language Notes.Dr. A. N. KROUT, Van Wert, O., says: indexed. Cloth, 50 cents. * The above work may be obtained, by" Decidedly beneficial in nervous exhaus- N. D. C. HODGES, 47 Lafayette Place, New York. order, through any bookseller, or post-free

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forms of exhaustion." . 47 Lafayette Place, New York.Descriptive pamphlet free. AMERICAN HERO-MYTHS.

Rumford Chemical Works, Providence, R. 1. On . . . .- . A Study In the Native Religions of theWestern Continent.

__ _ _ _ _ ___ By D. G. BRINTON, M.D. 80. $1.75.Beware of Substitutes and Imitations. Old and Rare Books. THE CRADLE OF THE SEMITES.CAUTION.-Be sure the word "6Hors- By D. G. BRINTON, M.D., and MORRIS JASTROW, JR.

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I

[VOL. XVII I1..SCIEwNCE., No., 43914

NE7W BOOK:S.

JUiST PUBLISHED.

IFOSSIL RESINS.This book is the result of an attempt to

collect the scattered notices of fossil resins,exclusive of those on amber. The work is ofinterest also on account of descriptions givenof the insects found embedded in these long-preserved exudations from early vegetation.

By CLARENCE LOWN and HENRY BOOTH.12°. $1.

THE AMERICAN'RACE:By DANIEL G. BRINTON, M.D."The book is one of unusual interest and value."1-

Inter Ocean."1 Dr. Daniol G#. Brinton writes as the acknowledged

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wish to know the substance of what has been foundout about the indigenous Americans "-Nature.

"1A masterly discussion, and an example of thesuccessful education of the powers of observation."-Philadelphia Ledger.

Price, postpald, $2.

BY THE SAME AUTHOR.

RACES A'ND PEOPLES."The bookr is good, thoroughly good, and will long

remain the best accessible elementa7y ethnographyin our language."-The Christian Un*on."We strongly recommend D,r. Brinton's I Races

and Peoples' to both beginners and scholars. Weare not aware of any other recent work on thescience of which it treats in the E3nglish language."-Alsiatic Quarterly."His bo.ok is an excellent one, and we can heartilyrecommend it as an introductory manual of ethnoi-

ogy."-The Monist."A useful and really interesting work, which de-

serves to be widely read and studied both in Europeand America."-Brighton (13ODg.) Herald."This volume is most stimulating. It is written

with great clearness, so that anybody can under-stand, and while in some ways, perforce, supArflcial,gaspsi very well the complete fleld of humanity."-the Bew York Times.I'*Dr. Brinton investshis scientific illustrationsanDdmeasuremeuts with an indescribable charm of nar-ration, so that 'Races and Peoples,' avowedly a tec-ord of discovered fcts, is in reality a strong stim-ulant to the imagination."-Philadelphia PublicLedger.

"-the work is indispensable to the student who re-quires an intelligent guide to a course of ethn'o-graphic reading."-PhiNladelphia Times.

Price, pofitpald, $1.75.

TlIEO MODERN MALADY; or, Suf-ferers, fro'm I Nerves.'

,An introduction,f to public consideration,from a non-medical point of view, of a con-dition of ill-health which is increasinglyprevalent in all ranks of society. In thefirst part of this worlk the author dwells onthe errors in our mode of treating Neuras-thenia, consequent on the wide ignorance ofthe subject which still prevails; in the sec-ond part, attention is drawn to the principalcauses of the malady.- The allegory formingthe Introduction to Part I. gives a brief his-tory of nervous ekhaustion and the modes oftreatment which have at various times beenthought suitable to this most painful and try-ing disease.

By CYRIL BENNETT.12`7 184 pp., $1.50.

-REA-DY SOON.

THE RADIOMETER,By, DANIEL S. TROY.

This will contain a discussion of the reasonsfor~their action aiqd of the pheno'mena, pre-rsented in Crookes' tubes.

Fact'and Theory PapersI. THE SUPPRESSION OF CON-SUMPTION. BY GODPREY W. HABLETON, M.D.120. 40C."1The inestimable Importance of the subject, theeBnence of the author, and the novelty of his work

ancombine to render the little treatise- worthy oispecial consideration. . . . We heartily commendDr. Hambleton's booklet, and wish there were moresuch works "1-Editorial, Boston Daily Aldvertiser.

I, The monograph is interesting in style, scholarly,and well worthy of careful consideration. It is de-void of technical expressions, and can be easily readand digested."-Pharmaceutical Bra.II. THE SOCIETY AND THE " FAD."1BY APPLECTON MORGAN, lisq. 120. 20 cents."Mlr. Morgan founds a sensible and interesting

address upon a text furnished by a sentence froma young ladies' magazine; namely, ', Browning andIbsen are the only reaXly dramatic authors of theircentury.' "-New York'Sun.III. PROTOPLASM{ AND LIFE. By'C. F. Coxr. 12°. 75 cen~ts."To be commeDded to those who are not special-isis."1-Christian Union.`"Physicians will enjoy their readiulg, and find in

them much food for thought."-St. Louis Medicaland Surgical Journal.

Mr. Cox reviews thae history of his subject withknowledge a-nd skill."1-Open Court.

It is ofextreme interest."-MedicalA ge."Worthy of a careful perusal."-.Indiana Medica

Journal."1An interesttng and popular account of the ten-

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of his subject."1-X16btic, O:pinion.**Deserves the attention of students of natural

science."--Critic.IV. T!HE CHEROKEES IN PRE-CO-LUMBIAN TIMES. By CYRUS THOMAS. 120. $1.Dr. Thomas has already presented to the public

some reasons for believing the Cherokees weremound-builders, but additional evidence bearingon thesubjecthasbeenobtained. A more carefulstudy of the Delawrare traditionrespecting the TaI-legwi satisfies him that we have in the BarkcRecord(Walam Olum) itself proof that they were Chero.kees. He thinks the moundis enable Us to trace backtheir line of migration even beyond their residencein Ohio to the western bank of the.3lsislsippi. Theobject is therefore threefold: l. An Illustrationl ofthe reversemethod of dealing with prehistoric sub-jects; 2. Incidental proof thatsome of the Indtinswere mound-builders; 3. A study of asingle tribe inthe light of the mound tVstimouly. This work wril beall important contribution to the literature of theColumbian discovery which will doubtles appearduring the coming two years.x" A valuablecontributlon to the question, 'Who

were the mound-builders ?I "7-New York Amies."IPrQfessor Cyrus Thomas undertalces to trace

back the evidences of a single Indlan tribe, Into the-prehistoric or mound-building age."-N. Y. Sun.,"An inIteresting Paper."---hristian Unioo.V. THE TORNADO. BY H. A. HAZEN.

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of interesting facts. Professor Jastrow's good qual-ities as a thinker and as awriter are too well andtoo widely known to requipe comment.17-PublicOpinion.

"1A useful work for psychologistSas well as thegeneral reader-by setting forth in brief and easilyintelligible form the preslent state ofkrnowledge inregard to the time'required for the performance ofmental acts-"-The, Critic.VII. HOUSEHOLD) HYGIENE. BYMARY TAYLOR Bi[SSELL. 120. 75 cents."A sensible brochure."-Brooklyn Eagle.",1Practical'and sensible."-Public Opinion."$The advice and excellent Informationl whichit

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In Preparation.VI-II. THE FIRST YEAR OF CHILD.IHQOD. By J.MARK BALWIN.

A NEW MO9NTHILYTHE INTERNATIONAL

JOURNAL OF MICROSCOPY A-ND.NATURAL SCIENCE.

THIE JOURNAL OF THIEPOSTAL MICROSCOPICAL AND WIESLEY

NATURALISTS' SOCIETIES.Edited by' ALFRED ALLEN and Rev.

WILLIAM SPIERS.CONTENTS OF JUNE NUMBER:

-$arthworms of Scotland.The History of the Msicroscope.Apparent Reasoning of the Ant.Aqpuarium.Infusoria, Protozoa, etc., Practical Methods of

PresDaration.Aspects of the Heavens-une, 1891.Pedesis (Brownian M^ovement).Collectors' Notes for June.Selected Notes from the Note-Books of the Postal

MIicroscooPical Siociety.Pygidi'um of Flea.Orbullna.Cocoo of Psylla.Staining.Foraminifera,Tongues of Molluscs.Spine of Cidaris.Whirlwig Beetle.

Science Jottings.Cosmic Dust.The Sun's Distance.Lbeap Year.A New Bleaching FPluid.Dliamond Cutting.The Arithmetic of the Romans.

Reviews.Sale and Exchange Column.

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A Journal of Enltomology, published monthlyby the Cambridge Entomological Club.$2.00 per year, $5.00 per volume of threeyears. Volume VI. began in January, 1891.Back volumes for sale at $5.00 each. Vol-ume I. sold ontly in complete sets.

THE WINNIPEG COU-NTRY;OR,

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THE LABRADOR COAST.A Journal of two Summer Cruises to that

region; with notes on its early discovery,on the Eskimo, on its physical geography,geology and natural history, together witha bibliography of- charts, works and articles.relating tof the civil and natural history ofthe Labrador Peninlsula.By ALPHEUS SPRING,PACKARD, M.D., Ph.D.

, about 400 pp., $3.50.

~N. D. G. HOD;GES, 47-Lafayette -Pace,-New York.'