An instructive address, before the Iron and Steel Institute of

Great Britain, was recently delivered by Sir W. Roberts Austen on

the progress made in the iron and steel industries during the past

century. The great revolution which the discovery of steel brought

about is dwelt upon at length, and its far-reaching importance, not

only in the iron industry itself but in all other industries and in the

destinies of England herself, pointed out. In the early days of the

industry it was held that the different qualities of iron were due to

the different localities from which the ore was obtained, but late in

the eighteenth century the great Swedish chemist, Bergman, of Upsala,

clearly showed that carbon is the element to which steel and cast

iron owe their distinctive properties. Clouet’s celebrated experiment

on the carburization of iron by the diamond followed. “Well might

Bergman express astonishment at the action of carbon on iron. Startling

as the statement may seem, the destinies of England throughout the

century, and especially during the latter half of it, have been mainly

influenced by the use of steel. Hardly a step of our progress or

an incident of our civilization has not in one way or another been

influenced by the properties of iron and steel. It is remarkable that

these properties have been determined by the relations subsisting

between a mass of iron, itself protean in its nature, and the few

tenths per cent of carbon it contains.” In 1800 the production of pig

iron in England was about 200,000 tons; in 1898 it was 8,769,249 tons.

* * * * *

A note in Nature describes an ingenious arrangement for controlling

the direction of torpedoes by means of ether waves. Two solenoids,

into which are drawn iron cores, are attached to the rudder head, the

core which is drawn in depending, of course, upon the direction of the

received current. Two rods projecting above the surface of the water

receive the waves and are in circuit with a coherer of special type,

which affects a relay in the usual way. The actual processes involved

in steering and controlling a torpedo are somewhat as follows: The

torpedo, containing a suitable combination of the apparatus above

mentioned, is launched from a vessel containing the necessary sending

apparatus. Suppose the torpedo goes off its course. Then, by means of

a switch, an induction coil is supplied with an electric current, and

waves or oscillations are generated. These, on reaching the torpedo,

pass into the projecting wire and thence reach the coherer. This

operates the relay, closing the secondary circuit. An electric current

now flows through a “selector” to one of the solenoids, the iron core

is sucked into right or left, and the helm is thus turned. When the

torpedo has attained a proper course the switch is opened and the waves

cease. The vibration in the neighborhood of the coherer restores it

to the original resistance; the current passing through it becomes

weaker and ceases to affect the relay coil, which therefore opens

the secondary circuit and allows the helm to fly back to the midship

position. A large model of the apparatus has been constructed, and it

is said to work with entire success under all kinds of conditions. The

inventors are Mr. Walter Jameson and Mr. John Trotter. It is stated

that Nikola Tesla has American patents for a somewhat similar device.

* * * * *

In the absence of the author, Professor Dewar’s paper on the

solidification of hydrogen was read in the British Association by Sir

William Crook. It shows that solid hydrogen presents the appearance

of frozen water, and not, as had been anticipated by many, of frozen

mercury; hence it is now definitely decided that it is not metallic.

The temperature of the solid is 16° absolute at thirty-five millimetres

pressure, and it melts at 16° or 17° absolute, the practical limit

of the temperature obtainable by its evaporation being 14° or 15°

absolute. Thus the last of the old gas has been solidified. It was

further mentioned, in connection with these statements, that Professor

Dewar had succeeded in liquefying helium.

* * * * *

The organizing committees of the Congresses of Aëronautics and

Meteorology--these being cognate subjects--of the Exposition of 1900

have decided to hold the meetings of these bodies in such a manner that

all members can attend the sessions of both. The programme arranged for

the Aëronautical Congress contemplates the discussion, under aspects

which are set forth in detail, of “problems” relating to free balloons,

their management and use; captive balloons, steerable balloons, and

aviation; and the scientific applications of balloon observations to

problems in astronomy, meteorology, and physiology; also of their

use for purposes of reconnoissance and topographical surveys, and of

photography from balloons. In a different order of ideas, the congress

may occupy itself with questions of legislation and international law

which concern aëronauts in times of peace and of war.

* * * * *

Three State catalogues of Ohio plants have heretofore been issued.

The first, by J. S. Newberry, was published in the State Agricultural

Report in 1859; the second, by H. C. Beardslee, was published in

1874, and was reprinted in the Agricultural Report for 1879; and

the third, by W. A. Kellerman and W. C. Werner, was included in the

State Geological Report for 1893. This work contains a bibliography,

and gives the names of the first known collectors of the less common

species. A fourth catalogue, consisting of a checklist of the

_Pteridophytes_ and _Spermophytes_, recently published by Prof. W. A.

Kellerman, contains the species and varieties numbered serially, as in

the State Herbarium of nearly ten thousand sheets, with the sequence of

groups as by Engler and Prantl, and the nomenclature as used by Britton

and Brown.

NOTES.

The committee of the St. Petersburg Astronomical Society for the

revision of the Russian calendar, to make it agree with the Gregorian,

has found it necessary to move slowly. The festivals prove a formidable

obstacle to the desired reform, and the people will have to be prepared

for the change before it can be instituted. The plan now is to use

both dates, Russian and Gregorian, together till the new style can be

made familiar, and it is proposed to make the double use compulsory on

private as well as on public documents and papers.

* * * * *

A steamboat company is placing its little vessels on the canals of

Venice, and the gondolas, which were one of the charms of the city to

travelers, are destined to disappear--unless a few may be reserved to

gratify the curiosity of tourists.

* * * * *

The Commissioner of Education of Rhode Island has issued a circular

to teachers, calling attention to the work of the Audubon Society for

the Preservation of Birds, and to the incalculable value, from various

points of view, of bird life, and advises them to foster Nature study

as furnishing a natural channel by means of which instruction and

information on the subject may readily be brought before the children,

and through them to the people generally.

* * * * *

In a paper on The Ultimate Basis of Time Divisions in Geology, T.

C. Chamberlin accepts it as proved that there were no universal

breaks in sedimentation or in the fundamental continuity of life, no

physical cataclysms attended by universal destruction of life, and

that sedimentation has been in constant progress somewhere and life

continuous and self-derivative since the beginning. He then raises the

question whether this continuity of physical and vital action proceeded

by heterogeneous impulses or by correlated pulsations. The author’s

conclusion is in favor of the hypothesis of correlated pulsations

involving a rhythmical periodicity.

* * * * *

Nettle fiber is said to be coming into great favor for the manufacture

of fine yarns and tissues. Several factories in Germany are using it,

and the introduction of the extensive cultivation of nettles into the

African colony of the Cameroons is contemplated.

* * * * *

There are now, according to the last annual Report of the Commissioner

of the General Land Office, thirty-six forest reservations (exclusive

of the Afognak Forest and Fish-Culture Reserve in Alaska) in the United

States, embracing an estimated area of 46,021,899 acres. This estimate

is for the aggregate areas within the boundaries of the reservations,

but the lands reserved are only the vacant public lands therein. The

actual reserved area is therefore somewhat less than the estimate.

* * * * *

Experiments made by Professor Dewar and Sir W. Thisleton Dyer, and

reported to the British Association, upon the effect of the temperature

of liquid hydrogen upon the germinative power of seeds, go to show that

life goes on at a temperature so low that ordinary chemical action is

practically stopped. Seeds of barley, vegetable marrow, mustard, and

the pea were immersed in liquid hydrogen for six hours, cooled to a

temperature of 453° F. below the temperature of melting ice, and came

out unchanged to the eye, and, when planted, all germinated.

* * * * *

Sir John Lubbock, having been raised to the peerage, has adopted Lord

Avebury as his title, and will be henceforth so known.

* * * * *

In our obituary list of men known to science are the names of N. E.

Green, F. R. A. S., who was distinguished for the excellence of his

planetary observations, particularly of Mars, made at Madeira in 1877,

and was the second President of the British Astronomical Association,

died November 10th, in his seventy-sixth year; Prof. E. E. Hughes,

inventor of the Hughes printing telegraph machine, the microphone, and

the induction balance, Fellow of the Royal Society, gold medalist, and

Chevalier of the Legion of Honor, who was born in London in 1831 and

was brought to the United States at an early age; Mr. J. R. Gregory,

mineralogist; M. Marion, professor in the Scientific Faculty in the

University of Marseilles and Keeper of the Natural History Museum

there, who took part in the dredging trips of the Travailleur and the

Talisman, and contributed to the _Annales_ of the museum at Marseilles;

Dr. Hans Bruno Geinitz, geologist and paleontologist, at Dresden,

Saxony, in his eighty-sixth year; Walter Götze, botanist, while on an

expedition to German East Africa, December 9th; and Mr. W. T. Suffolk,

treasurer of the Royal Microscopical Society of Great Britain.

PUBLICATIONS RECEIVED.

Agricultural Experiment Stations. Bulletins and Reports. Connecticut:

Twenty-third Annual Report. Part I. Fertilizers. Pp. 92; Bulletin No.

130. Commercial Feeding Stuffs in the Connecticut Market.--North Dakota

Weather and Crop Service, November, 1899, and January, 1900. Pp. 8

each.--United States Department of Agriculture: Agrostology Circular

No. 54. Smooth Brome-Grass. Pp. 10; No. 57. Experiments with Forage

Plants in Ontario. Pp. 3; Meteorological Chart of the Great Lakes.

Summary for the Season of 1899. Vol. II, No. 9. By Alfred J. H. Henry

and Norman B. Conger. Pp. 28, with maps.--West Virginia: Bulletin No.

61. Sheep-Feeding Experiments. By J. H. Stewart and Horace Atwood. Pp.

10; No. 62. A Study of the Effect of Incandescent Gaslight on Plant

Growth. By L. C. Corbett. Pp. 38, with plates.

American Grocer Publishing Company. Scientific Testimony against

the use of Alum in Food. (Evidence before the United States Senate

Investigating Committee.) Pp. 12.

Andrews, William. The Diuturnal Theory of the Earth, or Nature’s System

of constructing a Stratified Physical World. New York: Myra Andrews

and Ernest G. Stevens, 18 West Forty-fifth Street.

Benson, Lawrence Sluter. Principles of Finite Values in Mathematics.

Pp. 6.

Bland, Rev. J. P., Cambridge, Mass. What we Know about God. Pp. 12.

Bulletins, Reports, Announcements, etc. American Association for

the Advancement of Science: Forty-eighth Annual Meeting, Columbus,

Ohio, 1899. Proceedings. Pp. 527, with plates of portraits.--Annals

of the Astronomical Observatory of Harvard College. Vol. XXXII,

Part II. Visual Observations of the Moon and Planets. By. W. H.

Pickering, Director. Pp. 212, with plates; Vol. XXXIII. Miscellaneous

Researches, 1897-1899. Pp. 287, with plates; Vol. XLII, Part II.

Observations made at the Blue Hill Meteorological Observatory,

Massachusetts, 1897 and 1898, under the Direction of A. Lawrence

Rotch. Pp. 150.--Columbia University, New York: Summer Session, 1900.

Announcement. Pp. 24.--Cuba, Department of Posts: Annual Report for

the Fiscal Year ending June 30, 1899. Pp. 215.--Interstate Commerce

Commission: Preliminary Report on the Income Account of Railways in the

United States, to June 30, 1899. Pp. 70.--Massachusetts Institute of

Technology, Boston: Annual Catalogue, 1899-1900. Pp. 357.--Michigan:

Thirty-eighth Annual Report of the Secretary of the State Board of

Agriculture, and Twelfth Annual Report of the Experiment Station. Pp.

465.--Missouri Botanical Garden: Twelfth Annual Report. By William

Trelease. Pp. 151, with plates.--New York State: Report of the

Committee on Canals, 1899. Pp. 231, with charts; Sixteenth Annual

Report of the Bureau of Labor Statistics, 1898. Pp. 1179--Perkins

Institution and Massachusetts School for the Blind: Sixty-eighth Annual

Report. Pp. 325.--United States Department of Labor: Bulletin No. 26.

January, 1900. Pp. 236.--United States Geological Survey: Nineteenth

Annual Report. Part V. Forest Reserves. Pp. 400, with portfolio of maps.

Burns, J. J. The Story of English Kings according to Shakespeare. New

York: D. Appleton and Company. (Home-Reading Books.) Pp. 272.

Chambers, G. F. The Story of Eclipses. (Library of Useful Stories.) New

York: D. Appleton and Company. Pp. 222, with plates. 40 cents.

Citator, The. Ohio Edition. (Register of Citations in Legal Practice.)

Quarterly. Lapeer, Mich. Pp. 102.

Clinical Excerpts. Elberfeld Company, New York. Pp. 20.

Coulter, John M. Plant Structures. A Second Book of Botany. New York:

D. Appleton and Company. (Twentieth Century Text-Books.) Pp. 348. $1.20.

Deniker, J. The Races of Men. An Outline of Anthropology and

Ethnography. New York: Charles Scribner’s Sons. (Contemporary Science

Series.) Pp. 611. $1.50.

Echeveria i Reyes, Anibal. Voces Usadas en Chile. (Errors of Speech.)

Santiago. Pp. 246.

Hannay, P. M. How to gain Health and Long Life. Chicago: The Hazel

Pure-Food Company. Pp. 114.

I am that I am. A Dialogue of the Gods. By Sum quod Sum. New York:

Library of Liberal Classics. Pp. 21. 10 cents.

Kent, Rev. Alexander. The Plan of Salvation. Pp. 16.

La Pouge, G. Vachet de. L’Aryen Son Role Social. (The Aryan, his Social

Office.) Paris: Albert Fontemoing. Pp. 569. 10 francs.

Macmillan, The, Company. Announcements of New Books, Spring, 1900. Pp.

44.

McIlwraith, J. N. Canada. (History for Young Readers.) New York: D.

Appleton and Company. Pp. 252.

Manning, Warren H. A Handbook for Planning and Planting Small Home

Grounds. Stout Manual-Training School, Menomonee, Wis. Pp. 76.

Richter, Victor von. Organic Chemistry, or Chemistry of the Carbon

Compounds. Edited by Prof. R. Anschütz and Dr. G. Schroeter. Authorized

translation by Edgar F. Smith. Philadelphia: P. Blakiston’s Son & Co.

Pp. 671. $3.

Richardson, Harriet. A New Species of Idotea, from Hakodate Bay, Japan.

Pp. 4.

Ward, Lester F. Description of a New Genus and Twenty New Species of

Fossil Cycadean Trunks from the Jurassic of Wyoming. Pp. 32, with 7

plates.

Wooster, L. C. Educational Value of the Natural Sciences. Pp. 18.

INDEX.

ARTICLES MARKED WITH AN ASTERISK ARE ILLUSTRATED.

Aggression, External and Internal. (Table), 386

Agnosticism and Naturalism, Professor Ward on. H. Spencer, 349

Agricultural Education in Foreign Countries. W. E. De Riemer, 218

Agriculture: Alkali Soils in Montana. (Frag.), 734

” Manuring with Brains. (Frag.), 731

” Sea Water, Effect of, on Soil. (Frag.), 508

Air Flight, Early Experiments in. M. B. Rivet, 603

Alkali Soils in Montana. (Frag.), 734

Allen, Grant, Death of. (Frag.), 389

Amazonian Pygmies, Stories of. (Frag.), 733

A More Excellent Way. (Table), 729

Anarchist, A Paradoxical. C. Lombroso*, 312

Anglo-Saxon Superiority. (Frag.), 620

Animals of the Ocean Depths. (Frag.), 736

” Reason? Do. Rev. E. R. Young*, 105

” ” ” (Corr.), 122

Annual Flowers. (Frag.), 394

Anthropological Traits, Zola’s. (Frag.), 388

Anthropology: Amazonian Pygmies, Stories of. (Frag.), 733

” Anglo-Saxon Superiority. (Frag.), 620

” A Survival of Mediæval Credulity. E. P. Evans, 577

” Malay Folklore. R. C. Ford, 239

” Origins of the American Races, Professor Putnam on.

(Frag.), 507

Appleton, William H., The Late. (Table), 265

Archæology: Athabascan Indian Lodge, An. (Frag.), 292

” Egyptian Exploration, Recent Years of. W. M. Flinders

Petrie, 625

” Ophir, The Site of. (Frag.), 736

” Vinland and its Ruins. C. Horsford*, 160

Art Form, The Study of. D. Cady Eaton*, 685

” Value of the Study of. G. Perrot, 204

Artificial India Rubber. (Frag.), 136

Astronomy, Advance of, in the Nineteenth Century. Sir R. S. Ball, 289

” Forenoon and Afternoon. C. F. Dowd, 492

” Gegenschein, The. (Frag.), 618

” Scenes on the Planets. G. P. Serviss*, 337

Athabascan Indian Lodge, An. (Frag.), 392

Bacteria of the Dairy. (Frag.), 284

Ball, Sir R. S. Advance of Astronomy in the Nineteenth Century, 289

Baxter, William, Jr. What makes the Trolley Car go*, 316, 408, 564

Becker, W. F., M. D. The Morbid Sense of Injury, 596

Birds, Busy. (Frag.), 138

Blind Fishes of North America. C. H. Eigenmann*, 473

Books Noticed, 126, 268

Anthropological Institute of Great Britain, Quarterly Journal of,

277.

Astronomy, Elements of Practical. W. W. Campbell, 129.

-- Stars and Telescopes. D. B. Todd, 132.

Barrett, John. The Philippine Islands and American Interests in the

Far East, 133.

Beeman, W. W., and Smith, D. E. New Plane and Solid Geometry, 273.

Binet, Alfred. The Psychology of Reasoning, 274.

Biology. Living Organism, The. A. Earl, 131.

Botany. California Plants in their Homes. A. M. Davidson, 130.

-- Plant Relations. J. M. Coulter, 131.

British Race, The Story of the. J. Munro, 272.

Buckley, J. M. Extemporaneous Oratory, 270.

Bullen, F. T. Idylls of the Sea, 271.

Campbell, W. W. Elements of Practical Astronomy, 129.

Chemical Jurisprudence, Notes on. H. Huntington, 133.

Cities, Growth of, in the Nineteenth Century. A. F. Weber, 126.

Civil Engineers, Proceedings of the American Association of. April,

1899, 278.

Cope, E. D. Vertebrate Remains from the Port Kennedy Deposit, 133.

Coulter, John M. Plant Relations, 131.

Cragin, Belle S. Our Insect Friends and Foes, 273.

Croke, W. J. D. Architecture, Painting, and Printing at Subiaco,

134.

Crook, James K. Mineral Waters of the United States and their

Therapeutic Uses, 127.

Dalton, D. How to Swim, 277.

Davidson, Alice M. California Plants in their Homes, 130.

Diet in Illness and Convalescence. A. W. Winthrop, 271.

Earl, A. The Living Organism, 131.

Economics. Liquor Laws, Centralized Administration of. C. M. L.

Sites, 275.

Electricity. Accumulators, Small. P. Marshall, 276.

Entomology. Butterflies, Everyday. S. H. Scudder, 128.

-- Insect Friends and Foes. B. S. Cragin, 273.

Erlingsson, T. Ruins of the Saga Times, 277.

Fish and Fisheries, Report of United States Commission of, for Year

ending June 30, 1898, 276.

Fiske, John. Through Nature to God, 268.

Gardiner, C. A. Our Right to Acquire and Hold Foreign Territory, 134.

Gellé, M. E. L’Audition et ses Organes, 128.

Gelman, F. H. Elements of Blowpipe Analysis, 279.

Geological Survey, United States, Eighteenth Annual Report, 272.

Geometry, New Plane and Solid. Beeman and Smith, 273.

Heilprin, A. Alaska and the Klondike, 270.

History of the American Nation. A. C. McLaughlin, 129.

Huntington, H. Notes on Chemical Jurisprudence, 133.

Idylls of the Sea. F. T. Bullen, 271.

Insect Friends and Foes. B. S. Cragin, 273.

Interstate Commerce Commission, Tenth Annual Report of, 276.

Jacoby, J. The Object of the Labor Movement, 279.

Knowledge, Methods of. W. Smith, 273.

Kruger, F. T. A Step Forward, 275.

Labor Movement, The Object of the, 279.

Leonard, J. W. Who’s Who In America, 274.

Lucas, F. A. The Hermit Naturalist, 133.

Luquer, L. McI. Minerals in Rock Sections, 130.

McLaughlin, A. C. History of the American Nation, 129.

Marshall, P. Small Accumulators, 276.

Mathematics. Trigonometry, Elements of. H. C. Whitaker, 130.

Medicine. Transactions Wyoming State Medical Society. First and

Second Regular Meetings, 279.

Memory, The Philosophy of, and Other Essays, 274.

Mineralogy. Blowpipe Analysis, Elements of. F. H. Gelman, 279.

-- Colombia, The Ores of. H. W. Nichols, 132.

-- Crystals, The Characters of. A. J. Moses, 129.

-- Microscopic Identification of Minerals in Rock Sections. L. McI.

Luquer, 130.

Mineral Waters of the United States. James K. Crook, 127.

Montaigne on the Education of Children. L. E. Rector, 278.

Moore, J. H. Better World Philosophy, 276.

Morehouse, G. W. The Wilderness of Worlds, 131.

Moses, A. J. The Characters of Crystals, 129.

Munro, John. The Story of the British Race, 272.

Naturalist, The Hermit. F. A. Lucas, 133.

Nichols, H. W. The Ores of Colombia, 132.

Oratory, Extemporaneous. J. M. Buckley, 270.

Philosophy, Better World. J. H. Moore, 276.

-- Through Nature to God. John Fiske, 268.

Physiology. Hearing and its Organs. M. E. Gellé, 128.

Port Kennedy Deposit, Vertebrate Remains from. E. D. Cope, 133.

Psychologique, L’Année. A. Binet, 278.

Psychology of Reasoning, The. A. Binet, 274.

Railway Statistics in United States, Tenth Annual Report of

Interstate Commerce Commission, 276.

Reasoning, The Psychology of. A. Binet, 274.

Reason, The Dawn of. J. Weir, Jr., 275.

Rector, L. E. Montaigne on the Education of Children, 278.

Saga Times, Ruins of the. T. Erlingsson, 277.

Scudder, S. H. Everyday Butterflies, 128.

Sites, Clement M. L. Centralized Administration of the Liquor Laws,

275.

Smith, D. T. The Philosophy of Memory and Other Essays, 274.

Smith, W. Methods of Knowledge, 273.

Southern Magazine, The, 278.

Subiaco, Architecture, Painting, and Printing at. W. J. D. Croke,

134.

Swift, M. L. Anti-Imperialism, 134.

Swim, How to. D. Dalton, 277.

Todd, D. B. Stars and Telescopes, 132.

Weber, Adna Ferrin. Growth of Cities in the Nineteenth Century, 126.

Weir, J., Jr. The Dawn of Reason, 275.

Whitaker, H. C. Elements of Trigonometry, 130.

Who’s Who in America. J. W. Leonard, 274.

Wilderness of Worlds, The. G. W. Morehouse, 131.

Winthrop, Alice W. Diet in Illness and Convalescence, 271.

Witt, H. Fundamental Principles of Nature, Some Observations on the,

132.

Wyoming State Medical Society, Transactions of First and Second

Regular Meetings, 279.

Botanical Garden’s Museum, New York. (Frag.), 733

Botany: Annual Flowers. (Frag.), 394

” Genuine Starch Factories. B. D. Halsted*, 716

” Plant Names, English. (Frag.), 140

” The New Field of. B. D. Halsted, 98

Briggs, C. A. Is the Christian Religion Declining?, 423

Brooks, W. K. The Wonderful Century, 25

Broom as a Spreader of Disease, The. (Frag.), 734

Bunsen, Death of. (Frag.), 281

Calcium, Metallic. (Frag.), 283

California, Forestry in. (Frag.), 509

Cambridge University. (An English University.) H. Stotesbury*, 14

Canals, Future of the New York. (Frag.), 735

Carbonic Acid and Climate. (Frag.), 621

Carrington, James B. Winter Birds in a City Park*, 366

Cements, Action of, on Sea Water. (Frag.), 733

Chemistry: A Hundred Years of. F. W. Clarke, 673

” Calcium, Metallic. (Frag.), 283

” Hydrogen, The Solidification of. (Frag.), 618

” New Element, Another. (Frag.), 509

Children, Literature for. (Frag.), 618

China, Trade Corporations in. M. Courant, 722

Christian Religion Declining? Is the. C. A. Briggs, 423

City Roadways, Modern. N. P. Lewis*, 524

Civilized and Savage. (Frag.), 141

Clarke, F. W. A Hundred Years of Chemistry, 673

” ” ” The Man of Science in Practical Affairs, 487

Climate and Carbonic Acid. (Frag.), 621

Colored Labor, Educated. (Frag.), 141

Columbus, Ohio, Geology of. (Frag.), 141

Commission in Difficulties, A. (Table), 614

Cook, O. “Ribbon Lightning”*, 587

Courant, M. Trade Corporations in China, 722

Criminal Jurisprudence, Decline of, in America. G. C. Speranza, 466

Criminology: Anarchist, A Paradoxical. C. Lombroso*, 312

” Typical Criminals. Rev. S. A. Smith*, 539

Dairy, Bacteria of the. (Frag.), 284

“Dark Lightning.” (Frag.), 505

Dastre, M. A. The Scavengers of the Body, 379

Dawson, Sir William, Death of. (Frag.), 390

Democracy, Real Problems of. F. Smith, 1

Destruction of the Birds. (Frag.), 393

Development of the American Newspaper. W. L. Hawley*, 186

Diamonds, Emigrant, in America. William H. Hobbs*, 73

Appletons' Popular Science Monthly, April 1900 Vol. 56, Nov. 1899 to April, 1900 · 第 12 / 13 段