1 66 



SCIENCE. 



[Vol. XX. No 502 



Among the papers of special interest are those by J. Scott 

 Keltic on " Stanley and the Map of Africa; " the " Age of Bronze 

 in Egvpt," by Oscar Montelius; the "Primitive Home of the 

 Aryans," by A. H. Sayce; a "Primitive Urn Burial,*' by J. F. 

 Synder; "Criminal Anthropology," by Thomas Wilson; "Ant- 

 arctic Exploration," by G. S. Griffiths; "The History of the 

 Niagara River," by G. K. Gilbert; and Weismann's ''Theory of 

 Heredity." The recently published translation of Professor Weis- 

 mann's essays on heredity and allied topics has aroused the inter- 

 est of the general public in the system of his biological ideas. Mr. 

 George J. Romanes has undertaken a difficult task in endeavoring 

 to present Professor Weismann's different theories on the subject, 

 in a condensed form, but he has succeeded admirably. The papers 

 on "The Ascent of Man," by Frank Baker, "The Antiquity of 

 Man," by John Evans, and "The Progress of Anthropology" in 

 1890, by Professor Otis T. Mason, are of great value to those in- 

 terested in the science of anthropology. The ancient problem of 

 the squaring of the circle, which trained and untrained minds 

 have striven in vain to solve for two and a half thousand years, 

 is ably discussed in a paper by Hermann Schubert He makes 

 an historical sketch of the problem from the earliest times to the 

 present day, tracing the various theories from the times of pre- 

 Grecian antiquity to the verdict given by Professor Lindemann of 

 Konigsberg in June, 1682: " It is impossible with ruler and com- 

 passes to construct a square equal in area to a given circle." These 

 are the words of the linal determination of a controversy which 

 is as old as the history of the human mind. But the race of 

 circle squarer.s, unraindfulof the verdict of mathematics, that most 

 infallilile of arliiters. will never die out so long as ignorance and 

 the thirst for glory shall be united. 



"The Progress of Astronomy " during 1889 is clearly shown in 

 the paper by William C. Winlock, the compiler having made free 

 use of reviews, in the various branches of astronomy, contributed 

 by specialists to the Athenceum, Nature, Journal of the Astro- 

 nomical Society of the Pacific, the Observatory, Bulletin Astro- 



nomique, the Astronomical Journal, and other periodicals. Among 

 these are articles on stellar parallax, comets, meteors, variable 

 and colored stars, stellar spectra, astronomical jihotography, the 

 planets, solar spectrum, the sun, the solar system, and the minor 

 planets. Astronomical bibliography for 1889 is given at the con- 

 clusion of this paper, including the most important books and arti- 

 cles for that year, which have attracted the compiler's notice ; some 

 few titles having been taken from i-eviews and catalogues, where 

 the publications themselves have not been accessible. The title of 

 the paper by Robert Simpson Woodward on "The Mathematical 

 Theories of the Earth " implies a community of interest amongst 

 astronomers and mathematicians. In fact, the study of the earth's 

 crust, considered in its entirety and in its relations to similar 

 bodies of the imiverse, has long been the special province of 

 astronomers and mathematicians. Since the times of Galileo, 

 Kepler, and Copernicus, it has supplied a perennial stimulus to 

 observation and investigation, and it promises to tax the resources 

 of the ablest observers and analysts for some centuries to come. 

 The structure of the earth, as a mechanical and physical question, 

 is closely cennected with the origin and formation of its satellite 

 and of the planets and satellites belonging to the same solar sys- 

 tem. A paper "On the Physical Structure of the Earth," by 

 Henry Hennessy, treats of this subject, under the following head- 

 ings : " the mechanical and physical properties of the matter com- 

 posing the earth, the rotation of the earth considered as partly 

 fluid and partly solid," and a note concerning " the annual reces- 

 sion calculated on the hypothesis of the earth's solidity." The 

 papers on " Glacial Geology," by- Professor James Geikie; "The 

 Mediterranean, Pliysical and Historical," by Sir R. Lambert Play- 

 faii" and the "History of Geodetic Operations in Russia," by 

 Colonel B. Witshowski of the General Staff, and Professor J. 

 Howard Gore, are full of interest. 



The paper on " The Physical Basis of Musical Harmony," by 

 Professor Sylvanus P. Thompson, is a history of tlie researches of 

 Dr. R. Koenig, who is known not only as the constructor of the 



Publications Received at Editor's Office. 



BoNNEY, G. E. Induction Coils. New York, Mac- 



millan & Co. 12°. 231 p. Illustrated, gl. 

 CoMuissioNEBS OF FISHERIES of the State of New 



York. Twentieth Annual Report. 1892. Albany. 



State Printer. 8*^. 346 p. 

 Day, David T. Mineral Resources of the United 



States. Washington. Government. 8°. 679 p. 

 Doughty, Francis W. Evidences of Man in the 



Drift. New York. 8°. Paper. 18 p. 

 Graff, Ludwig vox. Bibliothek des Professors 



der Zoologie and vergl. Anatomie. Leipzig, 



Wilhelm Engelnann. 8°. Paper. 353 p. 

 Imperial University of Japan. Calendar for the 



Year 1890-91. Calendar for the Year 1891-92. 



Tokio. The University. 2 vols. 12°. Paper. 



Reading Matter Notices. 



Kipans Tabules cure hives. 

 Ripans Tabules cure dyspepsia. 



Societas Entomologica. 



International Entomological Society, Zu- 



rich-Hottingen, Switzerland. 



Annual fee, ten francs. 



The Journal of the Society appears twice a 

 Qionth, and consists entirely of original ar- 

 ticles on entomology, with a department for 

 advertisements. All members may use this 

 department free of cost for advertisements 

 relating to entomology. 



The Society consists of about 4.50 members 

 in all countries of the world. 



The new volume began April 1, 1893. The 

 numbers already issued will be sent to new 

 members. 



For information address Mr. Fritz Ruhl. 

 President of the Societas Entomologica, 

 Zurich-Hottingen, Switzerland. 



RESTORE YOUR EYESIGHT 



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 our home treatment. "We prove it." Hun- 

 dreds convinced. Our Illustrated pamphlet, 

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 Everybody wants it. *' The Eye," Glens Falls, N.Y. 



Exchanges. 



[Freeof charge to all, if of satisfactory character, 



Address N. D. C. Hodges, 874 Broadway, New York.] 



Exchange.— I havR the finest sheila of Anodonta 

 corpulenta, C'p'r, and Suborbiculata, Say, in the 

 world. Will exchange for fresh water, land, and 

 marine shells, in large or small quantities. Have 

 also for exchange 50 varieties of fresh water and 

 land shells from Spoon River, 111. Dr. W. S. 

 STRODE, Lewistown, 111. 



To exchange for books on birds or insects, or 

 fo back volumes of American Naturalist : Ecker's 

 "Anatomy of the Frog," Packard"'s "Guide,'" 

 Quyofs "The Earth and Man," Rnckhiirs, "The 

 Land of the Lamas.*" Parker's "Biology,'" Shoe- 

 maker's " Heredity, Health and Personal Beauty,'" 

 Dexter's " The Kingdoms of Nature,'" all new. M. J. 

 ELROD. 111. Wes. Univ., Bloomington, 111. 



For Sale. — About 1087 volumes of the private 

 library of Dr. Nicolas Le6n, foimerly director of 

 the Museum at Iflorelia, embracing publications of 

 special value f or Mexicologists, like those of Bishop 

 Zumdrraga (16th century), of Siguenza y Q-ongora, 

 of Aleraan, etc., the Missal of Spinoza, all very 

 scarce : manuscripts on tie history of Michoacdn 

 and other Mexican States, on the Tarasco (the 

 Indian language of Michoactln) and several works, 

 of which the only copy known to exist is in this 

 collection. Parties interested in the sale please 

 address Dr. NIC. LEON, Portal de Matamoras, 

 Morelia, Mexico. 



INDEXES 



Volumes XVII. and XVIII. 



SCIENCE 



are in preparation, and will be 

 issued at an early date. 



Wajtts, 



METALLURGICAL CHEMIST will give instruc- 

 tion in the metallurgy and chemical analysis 

 of iron and steel . Complete or special courses ap- 

 plying to the manufacture of pig irons and steels, as 

 well as to their uses. Address " METALLURGIST," 

 care Science. 



A GRADUATE of the University of Pennsylvania 

 and a practical mineralogist of twenty years' 

 experience desires to give his services and a cabi- 

 net of 25,000 specimens, all named, with about the 

 same number of duplicates, in minerals, crystals, 

 rocks, gems, fossils, shells, archaeological and ethno- 

 logical specimens and woods to aoy institution de- 

 siring a fine ^outfit for study. The owner will in- 

 crease the cabinet to 50,0u0 specimens in two years 

 and wall act as curator. Correspondence solicited 

 from any scientific institution. J, W. Hortter, 

 M.D., Ph.D., San Francisco, Cal., General P. O. 

 Delivery. 



WANTED.— A position as zoological artist in con- 

 r ection with a scientific expedition, institution 

 or individual investigations. Experienced in micro- 

 scopic and all scientific work. References given if 

 desired. Address J. HENRY BLAKE, 7 Prentiss 

 Place, N. Cambridge, Mass. 



YOUNG MEN destined for a medical career may 

 receive instruction in branches introductory 

 thereto, at the same time, if desired, pursuing the 

 so-called elementary medical studies. Advanced 

 students can have clinical iDStruction, use of 

 modern text books, etc. Will tabe one or two 

 students into my family and office. Such must 

 furnish unexceptionable references. Quizzing by 

 mail. Address Dr. J. H. M., in care of 417 Adams 

 Avenue, Scranton, Pa. 



CHEMIST AND ENGINEER, graduate German 

 Polytechnic, Organic and Analytical, desires a 

 position in laboratory or chemical works. Address 

 2133^ E. 7th Street, New York, care Levy. 



A MAN, 36 years old, of extensive experience, hav- 

 ing the degrees of A.M. and Ph.D.. desires a 

 first-class opening as a teacher of Zoology and 

 kindred studies Tn a college or university. Can 

 furnish numerous testimonials or references as to 

 success and skill in most modern laboratory 

 methods. Address E. W. D., Md. Agr. College, 

 College Park, Md. 



A JOHNS HOPKINS graduate (1892) desires a 

 position as instructor in mathematics and 

 phj^sics. Addres-. A. B. TURNER, Johns Hopkins 

 University, Baltimore, Md. 



