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fectious Diseases: Causation and Immunity,” giving the facts tbat bave been established in this field up to date; and A Further Study of Involuntary Movements,” by Professor Joseph Jastrow, supplementing a previous paper on this subject, will appear.

- Charles Scribner's Sons issued on Aug. 8 Stevenson's longexpected book on Samoa, entitled “A Footnote to History,” being a narrative of the varied history of that island for the past eight years.

-J. B. Lippincott Company's August Bulletin of New Publications contains, among other announcements, the following: “Photography: Its History, Processes, Apparatus, and Materials. Comprising Working Details of all the more Important Methods,” by A. Brotbers. In the preparation of this work, the author's aim has been to produce a Handbook for the Use of Students of Photography, which should give the results of practical experience, and include – as far as possible within a moderate compass information gathered from many sources, and not readily accessible. The newer methods have been dealt with in sufficient detail, ard special attention given to the processes in use prior to the introduction of the gelatino-bromide method. Some of these processes are in danger of being neglected through the facilities which the newer methods have introduced. But, as Professor Brothers demonstrates, the new processes do not give results equal to the old, and are totally unsuitable for some purposes such as making negatives for photo-lithography, and in various other ways. W bere practicable, the plates illustrate the processes described,

thus making the work distinctly more serviceable to students. “In Starry Realms: a New Work on Astronomy," by Robert S. Ball; “Regional Anatomy in its Relation to Medicine and Surgery,” by George McClellan, M.D.; " Steam Boilers: their Defects, Management, and Construction," by R. D. Monro. Of books in press, “A Short Course on Zoology Designed for High Schools and Academies,” by C. De Montmahon and H. Beauregard; translated and adapted for American schools by Wm. H. Greene, M.D. “Recent Rambles, or in Touch with Nature," by Charles C. Abbott, M.D.

- Ginn & Co. have nearly ready “German Orthography and Phonology,” by George Hempl, Assistant Professor of English in Michigan University. They will publish in the fall • Fourier's Series, and Spherical, Cylindrical, and Ellipsoidal Harmonics,” with applications to problems in mathematical physics, by W. E. Byerly.

- Outing for August opens with the first instalment of Wheelman Frank G. Lenz's description of a cycling tour around the world. The rider is at present somewhere on the broad western plains, en route for the Pacific coast, and during his two-year jaunt he will traverse Japan, China, India, Persia, Turkey, Austria, Germany, Holland, France, England, Scotland, and Ireland. Mr. Lenz will communicate his experiences to Outing from convenient points of his journey, illustrating bis articles by photographs taken by himself. The opening chapter describes the trip

Publications Received at Editor's Office.

Reading Matter Notices.

Wants.
Ripans Tabules : best liver tonic.
APGAR, AUSTIN C. Trees of the Northern United

Any person seeking a position for which he is qualiStates. New York, American Book Co. 12o. Ripans Tabules cure jaundice. fed by his scientific attainments, or any person seeking 224 p. $1.

some one to fill a position of this character, be it that ARKANSAS GEOL. SURVEY. Annual Report for 1890.

of a teacher of science, chemist, draughtsman, or what Little Rock, Press Print. 8o. 474 p

Exchanges.

not, may have the Want' inserted under this head BEAN, TARLETON H. Notes on Fishes Collected in

FREE OF cost, if he satisfies the publisher of the suitMexico. Washington, Government. 8o. Paper. [Free of charge to all, if of satisfactory character. able character of his application. Any person seeking 11.

Address N. D. C. Hodges, 874 Broadway, New York.) information on any scientific question, the address of BENEDICT, JAMES E Corystoid Crabs of the Genera

auy scientific man, or who can in any way use this Telmessus and Erimacrus. Washington, Gov- Taxidermist going out of business has quantity of the paper, is cordially invited to do so.

column for a purpose consonant with the nature oj ernment. 8. Paper. III. BOLLES, T. Dix. Chinese Relics in Alaska. Wash-finely-mounted specimens of North American birds, ington, Government. 8o. Paper. III.

mammals and reptiles and skios of birds for sale, EIGENMANN, CARL H. The Fishes of San Diego. ing lading but vocialt follectionpeli bird skins, show. CHEMISTLAND ENGINEER, graduate Cermaa .

some great variations ; also quantity Polytechnic, desires HOFFMAN, B. B. The sloyd system of Wood of skulls with horns of deer and mountain sheep, position

in laboratory or chemical works. Address and mounted beads of same. Working. New York, American Book Co. 12o. change for Hawk Eye camera with outfit. Apply

Will give good ex? 21844 E. 7th Street, New York, care Levy. 242 p. $1. JEFFERSON, SAMUEL.

MAN, 36 years old, of extensive experience, bav-
Columbus, An Epic Poem. I quickly to J. R. Thurston, 265 Yonge St., Toronto, Aing the degrees of A.M. and Ph.D., desires &

Canada.
Chicago, S. C. Griggs & Co. 12o. 239 p.
LINTON, EDWIN. Notes on Avian Entozoa. Wash-

first-class opening as a teacher of Zoology and ington, Government.

kindred studies in a college or university. Can 89. Paper. III. Mason, OTIS T. The Ulu, or Woman's Knife of reports for bulletins and reports not in my file. I success and skill in most modern laboratory

To exchange; Experiment Station bulletins and furnish numerous testimonials or references as to the Eskimo. Washington, Government. 80.

will send list of what I have for exchange. P. H. methods. Address E. W. D., Md. Agr. College, Paper. II. ROLFS, Lake City, Florida.

College Park, Md. RATHBURN, MARY J. Catalogue of Crabs of the

Family Periceridæ Washington, Government 8o. Paper.

For exchange: fine thirteen-keyed Aute in leather ALLINGCHANs within thorough training in Ana. RICKOPF, REBECCA D.

lytical Chemistry (including analysis of a photograph camera suitable for A Supplementary First

als, food, water, etc.), and holding a diploma of the Reader. New York, American Book Čo. 12° ing lantern slides. Flute cost $27, and is nearly new. 122 p. 25 cts. U. (). COX, Mankato, Minn,

School of Practical Science, of Toronto, and good tes.

timonials, desires a position as Analytical Chemist SHUFELDT, R. W. The Evolution of House Building

or as assistant to such. Address to WM. LAWSON, among the Navajo Indians. Washington, Gov.

Finished specimens of all colors of Vermont marble for 16 Washington Ave., Toronto, Ontario. ernment. $. Paper. III.

fine fossils or crystals. Will be given only for valuable SHUFELDT, R. W. A Maid of Wolpai. Washington, specimens because of the cost of polishing. GEO. W. Government. 8o. Paper.

HOPKINS (1892)

A position And Pinstructor duatematbematiereana PERRY, State Geologist, Rutland, Vt. Smith, John B. Revision of the Genus Cuculla,

physics. Address A. B. TURNER, Johns Hopkins etc. Washington, Government. 8o. Paper.

For exchange.-Three copies of " American State University, Baltimore, Ma. STYNEGER, LEONHARD. Preliminary Description Papers Bearing on Sunday, Legislation," 1891, $2.50, new

of a new Genus and Species of Blind Cave and unused, for 'The Sabbath," by Harmon'Kingsbury, Salamander. Wasbiogton, Government. 8o. 1840; "The Sabbath,” by A. A. Phelps, 1842; History

made previous to 1870 preferred. Also old and Paper. III. of the Institution of the Sabbath Day, Its Uses and

curious stamps on original letters, and old entire STYNEGER, LEONHARD. Notes on a Collection of Abuses,” by W. L. Fisher, 1859; “Humorous Phases of

U S. stamped envelopes. Will pay sash or give in Birds made in Japan. Washington, Govern the Law," by Irving Browne; or other works amounting WM. F. E. GURLEY, Danville, III.

exchange Arst-class fossils, including fine crinoids. ment. 8o. Paper.

to value of books exchanged, on the question of governWilliamsox. Mrs. M. BURTON. An Annotated List mental legislation in reference to religion, personal liberty, of tbe Shells of San Pedro Bay. Washington, etc;

If preferred, I will sell "American State Papers,

WA

ANTED.-To purchase laboratory outfit; balGovernment. 8o. Paper. III.

and buy other books on the subject. WILLIAM AD. auces, evaporating dishes, burettes, etc., DISON BLAKELY, Chicago, Ill.

wanted immediately for cash. C. E. SPEIRS, 23

Murray street, New York. P. O. Box 1741. For Sale or Exchange for books a complete private ance (2008. to 1-10mg ), platinum dishes and crucibles, ing optical business; one preferred who has a thorchemical laboratory outfit. Includes large Becker bal W

ANTED.-The services of a wide-awake young

man, as correspondent, in a large manufactur agate motors, glass-blowing apparatus, etc. TO

part or whole. Also complete file or Silliman's Journal, ough knowledge of microscopy and some knowledge 1862-1885 (62-71 bound); Smithsonian Reports, 1854-1883; of photography. Address by letter, stating age and U. S. Coast Survey, 1854-1869. Full particulars to en

references. Optical, care or Science, 874 Broadway, Volumes XVII. and XVIII.

New York, quirers. F. GARDINER, JR., Pomfret, Conn.

ANTED.-By a young man, a Swarthmore Col.
OF

Wanted, in exchange for the following works, any
standard works on Surgery and on Diseases of Children: high school in one of the Gulf States, or as instructor
Wilson's "American Ornithology," 3 vols.; Coues' “Birds in botany, physiology, and geology in an academy
of the Northwest” and “ Birds of the Colorado Valley," or normal school. Address B., care of Librarian,
2 vols.; Minot's “Land and Game Birds of New Eng- Swarthmore College, Penn.
land; Samuels' “ Our Northern and Eastern Birds;" all
tihed Reports on the Birds of the Pacific R. R. Survey: W Atwo daily or weekly papers.

ANTED.-To act as correspondent for one or

Have worked on Reports of the Arkansas Geological Survey: Please give paper for about two years Would like a position on editions and dates in corresponding. R. ELLSWORTH editorial staff of humorous paper. Address GEO. CALL, High School, Des Moines, Iowa. .

C. MASON, 14 Elm St., Hartford, Conn.

86 p.

INDEXES

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SCIENCE are in preparation, and will be bound in 2 vols., morocco; and a complete set of the issued at an early date.

across the Alleghanies from Pittsburgh via Washington to New separated the merchantable from the unmerchantable corn, and York, and is profusely illustrated.

calculated the yield of each separately per acre. They find that

the unmerchantable corn from the four plots from which the The experiment station of Cornell University conducted an tassels were removed averages 26 per cent, while the averages from experiment in 1890, showing very decided beneficial results from the otber four rows is 21 per cent unmerchantable. The calcularemoving the tassels from a part of the growing corn; their calcu- tions also show that the average yield per acre is about one bushel lations showing about fifty per cent gain from the rows from less than where the corn was left undisturbed. It is probable that which the tassels were removed over the alternate rows on which the tassels were not removed in this experiment early enough. To the tassels were allowed to remain. This remarkable showing insure or even make possible beneficial results from removing tascaused a similar experiment to be undertaken at the Ohio station sels, the pulling should be done as soon as they appear, and before in 1891. Thirty-two rows of corn, running over quite uniform the stalk has weakened itself in an attempt to perfect the tassel. land, were selected upon which to make this trial. On Aug. 1, The theory upon which this experiment is based is that the strength the tassels were pulled from each alternate row. At cutting-time that would otherwise go to the maturing of the tassel and producfour rows, having the tassels removed, were cut and shocked to- tion of pollen is diverted to the use of grains, and from their more gether, then four rows from which the tassels were not removed complete development more corn is produced. The fodder in this were shocked together. Continuing this throughout the thirty- experiment was not weighed, because back-water from a bigh two rows, they bad wben done four shock rows of each. When river damaged it to such an extent as to make the weight unrehusked these shock rows were weighed separately. They also liable.

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PATENTS MINERALS.

QUERY

TO THE READERS OF SCIENCE. .

Can any reader of Science cite

PUBLISHER'S ANNOUNCEMENT. a case of lightning stroke in which the dissipation of a small Titles of Some Articles Published in Science since | Baur, G., Clark University, Worcester, Mass. conductor (one-sixteenth of an

Beauchamp, w. M.,

Baldwingville, N.Y. inch in diameter, say,) has failed Activism. to protect between two horizon- Anatomy ano eaching of, to Advanced Medical Brinton, p. commandopala, pa tal planes passing through its Anthropology, Current Notes on. upper and lower ends respective. Artesian Wells in lowa.

Cragin, F. W., Colorado Springs, Col. ly? Plenty of cases have been Bacteria, Some Uses of. found which show that when the Bythoscopida and Cereopidæ. conductor is dissipated the build- Charicotherium, The Ancestry of.

Chemical Laboratory of the Case School of Applied Gallaudot, E. M., Kendall Green, Washington, D.C. ing is not injured to the extent chilence

Garman, S., Museum of Comp. Zool., Cambridge, explained (for many of these see Cornell, The Change at. volumes of Philosophical Trans. Elektrical Engineer, The Technical Education of.

Biphtheria actions at the time when light. Etymology of two Iroquoian Compound Stems. ning was attracting the attention Bien la presentine Motor Muscles of, to certain of the Royal Society), but not Fishes. The Distribution of. an exception is yet known, al. Gems, Artiácial, Detection of. though this query has been pub Great Lakes Plein of the Basins of. lished far and wide among elec- Hemiptori us Mouth, Structure of the. tricians.

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Agricultural .
Jan. I, 1892.

Beals, A. H., Milledgeville, Ga.
Aboriginal North American Tea.

Boas, Franz, Clark University, Worcester, Mass.

Bolley, H. L., Fargo, No. Dak.
Agriculture, Experimental, Status of.

Bostwich, Arthur E., Montclair, N.J.
Amenhotep, King,

Milton, SpringfieldMass.
Students.

Ellsworth, Des , la.

Chandler, H., Buffalo, N.Y.
Architectural .

Comstock, Theo. B., Tucson, Arizona.
Arsenical Poisoning from Domestic Fabrics.

Conn, H. W., Middletown, Conn.
Davis, W. M., Harvard College, Cambridge, Mass.

Dimmock, George, Canobie Lake, N.H.
Botanical Laboratory, A.

Farrington, E. H., Agricultural Station, Champaign,
Brain, A Few Characteristics of the Avian.

Ill.
Car ada, Royal Society of.

Ferree, Barr, New York City.
, of

Flexner, Simon, Johns Hopkins University, Balti

more, Md.

Foshay, P. Max, Rochester, N.Y.
,
Children, Growth of.

Mass.
Collection of Objects Used in Worship.

Golden, Katherine E., Agricultural College, Lafay-
Deaf, Higber Education of the.

ette, Ind.
Hale, Edwin M., Chicago, Ill.

Hale, George S., Boston, Mass.
Eskimo Throwing Suicks.

Hale, Horatio, Clinton, Ontario, Canada.

Hall, T. Proctor, Clark University, Worcester, Mass. -Habits.

Halsted, Byron' D., Rutgers College, New Bruns

wick, N.J.
Facial Expressions.

Haworth, Erasmus, Oskaloosa, Iowa.
Famlly of.

Hay, O. P., Irvington, Ind.

Haynes, Henry W., Boston Mags.
Fossils, Notice of New Gigantic.

Hazen, H. A., Weather Bureau, Washington, D.C.
Four-fold Space, Possibility of & Realization of.

Hewitt, J. N. 'B., Bureau of Ethnology, Washington,

D.C.
Glacial Phenomena in Northeastern New York.

Hicks, L. E., Lincoln, Neb.
Grasses, Homoptera to.

Hill, E. J., Chicago, Ill.
, Origin .

Hill, Geo. A., Naval Observatory, Washington, D.C. "Healing, Divine.”

Hitchcock, Romyo, Washington, D.C.

Holmes, E. L. Chicago, Ill.
Hofmann,

Hotchkiss, Jed., Staunton, Va.

Howe, Jas. Lewis, Louisville, Ky.
Hypnotism among the Lower Animals.
Hypnotism, Traumatic.

Hubbard, Gardiner G , Washington, D.C.
Indian occupation of New York.

Jackson, Dugald C., Madison, Wisconsin
First inserted June 19.

James, Joseph F., Agricultural Dept., Washington, No response Infuenza, Latest Details Concerning the Germs of.

D.C.

Jobuson, Roger B., Miami University, Oxford, O. to date.

Insects in Popular Dread in New Mexico.
Inventions in Foreign countries, How to Protect.

Kellerman, Mrs. W. A., Columbus, O. Inventors and Manufacturers, the American Associa Kellicott, D. S., State University, Columbus, O. ation of.

Kellogg, D. S., Plattsburgh, N. Y.
N. D. C. HODGES,
Iowa Academy of Sciences.

Lintner, J. A., Albany, N. Y.
Jargon, The Chinook.

Loeb, Morris, New York City.

Mabery, Charles F., Cleveland, Ohio.
874 BROADWAY, NEW YORK.
Jessidæ; Notes on Local.

Macloskie, G., Princeton, N.J.
Keller, Helen.
Klamath Nation, Linguistics.

McCarthy, Gérald, agricultural Station, Raleigh,

N.C.
Laboratory Training, Aims of.

MacDonald, Artbur, Washington, D.C.
Lewis H. Carvill, Work on the Glacial Phenomona.
A TEMPORARY BINDER
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Marshall, D. T., Metuchen, N.J. for Science is now ready, and will be mailed Lissajou's Curves, Simple Apparatus for the Produc- Milixpaugb, Charles F., Morgantown, W. VA

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lows the opening of the pages per- Mineral Þiscoveries, Some Recent, in the State of Osborn, Henry F., Columbia College, New York
fectly flat. Any number can be

City.
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Pammel, L. H., Agricultural Station, Ames, Iowa. Palenque Tablet, a Brief Study of. turbing the others, and the papers Patent omice Building, The.

Pillsbury, J. H., Smith College, Northampton, Mass. are not mutilated for subsequent Physa Heterostropha Lay, Notes on the Fertility of. Proble, Jr., W. P., New York City.

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Star Photography, Notes on.

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Star, The Now, in Auriga.
Storage of Storm-Waters on the Great Plains.

Stevenson, S. Y., Philadelphia, Pa.
Teaching of Science.

Stone, G. H., Colorado Springs, Col.

Thomas, Cyrus, Washington, D. C.
Tiger, A New Sabre. Toothed, from Kansas.

Thurston, Ř. H., Cornell University, Ithaca, N.Y.
Timber Trees of West Virginia.
By DANIEL S. TROY.
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True, Frederick W., Natlonal Museum, WashingVein. Formation, Valuablo Experiments in. This contains a discussion of the reasons Weeds as Fertilizing Materlal.

ton, D.C. for their action and of the phenomena pre- will, a Recent Analysis of.

Turner, C. H., University of Cincinnati, Cincinnati,

0. sented in Crookes' tubes.

Wind-Storms and Trees.
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Wake, C., Staniland, Chicago, Ill.
Price, postpaid, 50 cents. Zoology in the Public Schools of Washington, D. C. Ward, B. DOC., Harvard University, Cambridge,

.

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ton, D.C. 1, 1892.

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more, M.D. Material arranged and compiled for all kinds of Aarop, Eugene M., Philadelphia, P&.

West, Gerald M., Clark University, Worcester, Mass. works, excepting fiction. Statistics a specialty. | Allen, Harrison, Philadelphia, Pa.

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THE RADIOMETER.

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A WEEKLY NEWSPAPER OF ALL THE ARTS AND SCIENCES

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TENTH YEAR.
VOL. XX. No. 498.

AUGUST 19, 1892.

PER YEAR, IN ADVANCE.

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