SCIENCE. 



[Vol. XVI 11. No. 440 



NEO-DARWINISffl AND MO-LAMARCKISffi. 



By LESTER F. WARD. 



Annual address of the President of the Biological 

 Society of "Washington, delivered Jan. 24, 1891. A 

 historical and critical review of modern scientific 

 thought relative to heredity, and especially to the 

 problem of the transmission of acquired characters. 

 The following are the several heads involved in the 

 discussion: Status of the Problem. Lamarckism, 

 Darwinism, Acquired Characters, Theories of He- 

 redity, Views of Mr, Galton, Teachings of Professor 

 Weismann, A Critique of Weismann, Neo-Darwin- 

 ism, Neo-Lamarckism, the American "School," Ap- 

 plication to the Human Race. In so far as views 

 are expressed they are in the main in line with the 

 general current of American thought, and opposed 

 to the extreme doctrine of the non-transmissibility 

 of acquired characters. 



Price, x>ostpaid, 25 cents. 



N. D. C. HODGES, 47 Lafayette Place, N. Y. 



Wants. 



A ny person seeking a position for 'which he is quali 

 fled by his scientijic attainments^ or any person seekinf^ 

 some one to Jill a position of^ this character^ be it that 

 of a teacher of science^ chemist^ draughtsman^ or what 

 not^ may have the ' Want ' inserted under this head 

 FREE or COST, if he satisfies the publisher of the suit- 

 able character of his application. A ny person seeking 

 information on any scientific question^ the address of 

 any scientific inan, orwhocan in any -way use thiscol- 

 tnnn for a purpose consonant with the nature of the 

 paper ^ is cordially invited to do so. 



AN DER SEE. Eeisebriefe aus dem Moore 

 und von der Nordsee. Von Dr. Ernst 

 Doges. (1884.) 178 p. 12". 25c. 

 DIE KOLONIALREICHE UND KO- 

 LONISATIONSOBJEKTE DER GE- 

 GENWART. Kolonialpolitische und 

 kolonialgeographische Skizzen von Dr. 

 Emil Deckert. Leipzig, 1885. 240 p. 12°. 

 25c. 



REISEERINNERUNGEN AUS AL- 

 GERIEN UND TUNIS. Von Dr. W. 

 Kobelt. Frankfurt am Main, 1885. Illus- 

 trated. 480 p. 8". 75c. 



TRANSMISSION ELECTRIQUE DU 

 TRAVAIL MECANIQUE. Determina- 

 tion des Elements de la Transmission. Par 

 A. Hillairet. Paris, 1884. Illustrated. 

 79 p. 8°. 25c. 



PIE BEZIEHUNGEN ZWISCHEN 

 GEISTESSTORUNG UND VER- 

 BRECHEN. Nach Beobachtungen in der 

 Irrenanstalt Dalldorf von Dr. W. Sander 

 und Dr. A. Eichter. Berlin, lt)86. 404 p. 

 8°. 75c 



BLATTER FUR GEFANGNISS- 

 KUNDE. Organ des Vereins der deuts- 

 chen Strafanstaltsbeamten. Eedigirt von 

 Gustav Ekert. Neunzehnter Band, 1 u. 2 

 Heft. Heidelberg, 1884. 151 p. 8°. 25c. 



KRITISCHE UND EXPERIMEN- 

 TELLE BEITRAGE ZUR LEHRE 

 VON DER FUTTERUNGSTUBER- 

 CULOSE. Von Dr. F. Wesener. Frei- 

 burg, 1885. 98 p. 8°. 25c. 



GEDENKTAGE DER PSYCHIATRIE 

 ALLER LANDER, Von Dr. Heinrich 

 Laehr. Berlin, 1885. 65 p. 8". 50c. 



ZUR KUNSTLICHEN ERNAHRUNG 

 DER SAUGLINGE IN DEN DREI 

 ERSTEN LEBENSMONATEN. Ex- 

 perimentell plinische XJntersuchung von 

 Dr. H. Schoppe. Tubingen, 1884. 83 p. 

 8°. 35c. 



SCIENCE BOOK AGENCY 



47 I-afayette Mace, New York. 



A 



N EDUCATOR of mature years and^esperience 



is open to engagement as President of a (SoUege 



Normal School. Address "UNIVERSITY/"' care 



WANTED— Lyell's Principles of Geology, second- 

 hand copy, 2 vol. ed., D. Appleton & Co, State 

 condition and price. J. W. FRELEY, Wells Col- 

 lege, Aurora, N. Y. , 



A PROFESSOR, native Frenchman, would accept 

 a situation as companion-tutor in a family 

 spending the summer in the country or abroad. Best 

 pure Parisian accent. Rare opportunity to improve 

 thoroughly the acquaintance laboriously acquired 

 during the winter. First-class references. Address 

 PROF. CATEAUX, Poughkeepsie, N. Y. 



CHEMIST.— A chemist, with the degree of M.Sc, 

 desires an engagement, either as chemist to 

 manufactory, &c., or as professor of chemistry in a 

 college or medical school. Has had experience as 

 Professor of Chemistry and thorough chemical edu- 

 cation in every branch of the science. Address 

 M.Sc, this office. 



WANTED to buy a copy of Dr. Edward Seguin's 

 treatise on ''Idiocy" : New York, Wm. Wood 

 & Co., 1866. Address, stating price, P.O. BOX 755, 

 Worcester, Mass. 



A POLYTECHNIC INSTITUTE GRADUATE, with 

 one year's experience, wants a position as 

 Teacher of Mathematics, Physics, English, and Me- 

 chanical Drawing, or as Assistant in a Mechanical or 

 Engineering Laboratory. For particulars address 

 P. O. Box 755, Worcester, Mass. 



WANTED— Four additional Teachers for the 

 whole or part of the summer at the Summer 

 School of Languages, Bryant School, Roslyn, L. I., 

 N. Y. One of them at least should be a teacher of 

 conchology and the botany and bioic^y of the ocean, 

 one a geologist, and one a native of France. 



SCIENCE CLUBBING RATES. 



10^ DISCOUNT. 



We will allow the above discount to any 

 subscriber to Science who will send us an 

 order for periodicals exceeding $10, counting 

 each at its full price. 



N. D, C. HODGES, 47 Lafayette Place, N. Y. 



A CHEMIST, who has taken a thorough course in 

 chemistry in one of our best institutions, would 

 like a position as assistant in an iron firm or in any 

 industrial establishment. Correspondence solicited. 

 JOHN N. BARBER, Box 743, Amherst, Mass. 



A TEMPORARY BINDER 



for Scie7ice is now ready, and will be mailed 



postpaiH on receipt of 75 cents. 



This binder is strong, durable and 

 elegant, has gilt side-title, and al- 

 lows the opening of the pages per- 

 fectly flat. Any number can be 

 taken out or replaced without dis- 

 turbing the others, and the papers 

 are not mutilated for subsequent 

 permanent binding. Filed in this 

 binder, Scienceis always convenient 



Temporary binders of the same 

 description but without side title, to- 

 fit any paper or periodical of ordi- 

 led postpaid on receipt of price as 

 ering, be sure to aive the name of 

 d style of binder. 



giver 



paper or period 



I inches long, cloth, ijo.so; leather, $0.60. 



N. D. C. HODGES. 47 Lafavette Place, New York 



WORLD-ENGLISH. 



25 Cents. 



ANDBOOK OF 

 WORLD-ENGLISH. 



25 Cents. 



Es - President Andrew D. 

 White, of Cornell University, 

 says: "I believe thatthe highest interests of Chris- 

 tian civilization and of humanity would be served 

 by its adoption." 



" So set down, our tongue is the best for the world 

 to unite m^qji^''— Brooklyn Eagle. 



'■ The idea of Mr. Bell has much to recommend it, 

 and the presentation is charmingly clear." — Ameri- 

 can, Phila. 



"The result is a language which cannot fail to 

 meet with acceptance." — Boston Traveller. 



"World English deserves the careful consideration 

 of all serious scholars."— ilfodern Language Notes. 



Sent, postpaid, on receipt of price. 



N. D. C. HODGES, 47 Lafayette Place, N. Y. 



AN experienced tutor, Latin, English, German, 

 Science, wishes an engagement in High School 

 or Academy for September commencing. H. L. M., 

 ■343 West 45th Street, New York City. 



Exchanges. 



[Free of charge to all, if of satisfactory character. 

 Address N. D. C. Hodges, 47 Lafayette Place, New 

 York.l 



For Exchange. — A collector of twelve years experience 

 has many fine duplicate minerals which he would like to 

 exchange for others. Address John Holl. Rollo, Wil- 

 mington, Del. 



I would like to exchange some twenty vols, of the Sec- 

 ond Geological Survey of Pa., also a few U. S- Geol. Sur- 

 vey Reports, for State geological reports not in my 

 library. Full particulars to those who offer. J. W. 

 Freley, Wells College, Aurora, N. Y. 



Unbound volumes of the Electricia7i (London), the 

 Electrical Rcviein (London), Electrician (a weekly 

 journal of applied electricity and physics, London), and 

 unbound volumes of Science m exchange for mineral 

 specimens. D. T. Marshall, Metuchen, N. J. 



For sale, or exchange for geological works, the follow- 

 ing works in anatomy, all latest editions: Allan, Tuain, 

 Gray, Leidy, Massey, and Rollestin's Forms of Animal 

 Life. S. W. Williston, Lawrence, Kan. 



Will exchange a new Thomson reflecting astatic gal- 

 vanometer, about 6,000 ohms, made by Clark, Muir- 

 head & Co , London, and costing £30, with 1-9, 1-99, 

 1-999, shunts, lampand scale, for a Weston voltmeter 

 and ammeter, or arge Wheatstone bridge, dial pattern, 

 or a portable testing outfit. Address G. A., Science 

 Office, 47 Lafayette Place, New York. 



HANDBOOK OF METEOROLOGICAL TABLES. 



By Asst. Prop. H. A. Hazen. 

 137 pp. 8°. 



Professor Waldo says : "I heartily recom- 

 mend them to all workers in meteorology, 

 and do not see how any of our American 

 meteorologists can afford to be without a 

 copy." 



Professor Symons of London says : ' ' They 

 are unquestionably valuable helps, which 

 must be kept handy, and replaced when 

 "worn out." 



Price, postpaid, $1. 



N. D. G. BODGES, 47 Lafayette PI, , Hew York. 



ANY OF 



Prof. A. MELVILLE BELL'S WORKS 



— ON— 



Elocution — Visible Speech — 

 Principles of Speech — Faults 

 of Speech — Phonetics — Line 

 Writing — World - English, 

 etc., 



SUPPLIED BY 



N. D. C. HODGES, 47 Lafayette Place, N. Y. 



BOOKS: How to Sell tlieiu. Send a list, 

 stating condition, edition, etc., to Science Book 

 Agency, 47 Lafayette Place, New York. 



Ward'sNaturalScienceEstablishment 



minerals, 



Rocks, 



Fossils, 



Casts of Fossils, 



Geological 



Relief REaps. 



Mineralogy, Geology, Paleontology, Zoology, Osteology, Anatomy. 



Send for Circular. ROCHESTER, N. Y. 



stuffed Animals 



and Skins, 



Mounted 



Skeletons, 



Anatomical 



Models, 



InTcrtebrates. 



