SCIENCE. 



[Vol. XVIII. No. 446 



MEO-DARWINISM AN. NEO-LAMARCKISM. 



By LESTE.i F. WARD. 



Annual address ol the t-resident 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 espressed 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, postpaid, 25 cents. 



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



"pOB SALE.— 



AN DER SEE. Eeisebriefe aus dem Moore 

 und von der Nordsee. Yon Dr. Ernst 

 Doges. (1884.) 178 p. 13°. 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, 1888. 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 Untersuchung von 

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

 8°. 25c. 



SCIENCE BOOK AGENCY 



47 Lafayette Place, New York. 



SCIENCE CLUBBING RATES. 



lOfc DISCOUNT. 



We will allow the above discount to any 

 subscriber to Science who will send us an 

 order for periodicals exceeding $10, oounting 

 each at its full price. 



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



Wa7tts. 



A 7iy person seeking a position for lukzck he is quali- 

 fied by kis scientific atiain7nents^ or any person seeking 

 some 07ie to fill a position of this character^ be it that 

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

 not. 7}zay have the * Wanf inserted under this head 

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

 able character of his application. Any person seeking 

 information on any scientific question^ the address of 

 any scientific man. or tvAo can in any ivay use thiscol- 

 utnn for a Purpose consonant ivith the nature of the 

 paper ^ is cordially invited to do so. 



WANTED — A position at a University as Lecturer 

 on Physical Geography or kindred subjects, by 

 a graduate from abroad. First-class references. For 

 particulars address F. A. V., care Science. 



WANTED a position as professor of geology or 

 metallurgy by a school of mines graduate. Ad- 

 dress T. W. O., 49th Street and Madison Avenue, 

 New York City. 



A SCHOOL, in a charming location, needs a lady 

 teacher who would teach a portion of each 

 day, five days a week, in return for her home in 

 the institution for a year. The ordinary English 

 branches. (She will be specially acceptable if she 

 has any accomplishments, as Music, Art., Delsarte 

 System.) MALE SCHOOL, care Science, 47 Lafayette 

 Place, New York. 



AN EDUCATOR of mature years and experience 

 is open to engagement as President of a College 

 or Normal School. Address " UNIVERSITY," care 

 Science. 



WANTED— LyeU'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. GATEAUX, 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, thisofBce. 



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 biology of the ocean, 

 one a geologist, and one a native of Prance. 



Exchanges. 



[Freeof charge to all, if of satisfactory character. 

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



York.l 



For sale or exchange, extra fine pair ( $ and ? ) of skins 

 of Rocky Mountain Goat, with the skulls, etc., as needed 

 for mounting; collection of vertebrate fossils from the 

 Coup Fork Tertiary of Kansas; collection of works on 

 descriptive cryptogamic botany — mostly on Fungi; thir- 

 teen vols, of Bota7iical Gazette, eight vols. Grcvillea., 

 four vols. Notarisea: stereopticon outfit, with attach- 

 ment for microscopic projection ; 148 stereopticon slides, 

 illustrating zoology and cryptogams. Wanted — American 

 and foreign works and pamphlets on Vertebrate Pala2on- 

 tology, and series oi Am. Jour, of Science and other peri- 

 odicals containing contributions to Vertebrate Palaeon- 

 tology. Prof. F. W. Cragin, Topeka, Kan. 



Botanical specimens for exchange.— Special pains have 

 been taken to procure good mountable specimens fit for 

 any herbarium and no other are offered. E. E, Boeue, 

 Orwell, Ohio. 



For exchange or sale at a sacrifice, an elaborate micro- 

 scope outfit. Bullock stand; monocular objectives, one- 

 sixth homeogeneous immersion, four-tenths, and three 

 inch, Eausch & Lomb, also one-fourth and one inch 

 Spencer. Four eye-pieces. Objectives are the best made. 

 Address Mrs. Marion Sraith, 41 Branch Street, Lowell, 

 Mass. 



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. 



ESTERBROOK'S 

 STEEL PENS. 



01 SUPERIOR AND STANDARD QUALITY. 

 Leading Nos.: 048, 14, 130, 135, 239, 333 



For Sale by all Stationers. 

 THE ESTERBROOK STEEL PEN CO., 



Works: Oamden. N. J. 26 John St., New York. 



PATENTS 



For INVENTORS. 40-page BOOK FREE. Address 

 W. T. Fitzgerald, Attorney at Law, Washington, B.C. 



rA I til I Washington, D. C. 



ILLUSTRATED HAND-BOOK FREE upon applica- 

 tion. Mention this paper. 



MIMEDAIC Cabinet Specimens. Collections. 

 ITIIIlCnnLOi Fob Blowpipe Analysis. 



Largest and finest stock in U. S. 100pp. Illustrated 

 Catalogue, paper botind, 15c.: cloth bound, 35c. 

 GEO. L. ENGLISH & CO, Mineralogists, 

 Removed to 733 & 735 Broadway, New York. 



Illew Method of Protecting Property 

 from Lightning. 



The Lightning Dispeller. 



Price, $20 to $30.— According to size. 



The Patent Lightning Dispeller is a conduc- 

 tor specially designed to dissipate the energy 

 of a lightning discharge, — to prevent its 

 doing harm, — placing something in its path 

 upon which its capacity for causing damage 

 may be expended. 



No recorded case of lightning stroke has 

 yet been cited against the principle of the 

 Dispeller. So far as known, the dissipation 

 of a conductor has invariably protected under 

 the conditions employed. 



Correspondence solicited. 



AGENTS WANTED. 



The American Lightning Protection Company, 



United Bank Building, Sioux City, Iowa. 



HANDBOOK OF METEOROLOGICAL TABLES. 



By i^ssT. Prof. H. A. Hazen. 

 127 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. C. BODGES, 47 Lafayette PL, New York. 



Ward's Natural Science Establishment 



]M[inerals, 



Rocks, 



Fossils, 



Casts of Fossils, 



Oeologrical 



Relief maps. 



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



Send for Circular. ROCHESTER, N. Y. 



stuffed Animals 



and Sliins, 



mounted 



Skeletons, 



Anatomical 



models,. 



Invertebrates 



