SCIENCE. 



[Vol. XVIII. No. 45^ 



Wants. 



A 7iy person seeking a position /or ivhick he is quali- 

 fied by his scientific atiaimnen*!^ or any person seeking 

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

 qfi a teacher ofi science^cheinist^ draughtsman^ or ivhat 

 not, may have the ' VVant^ inserted under this head 

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

 able character of his application. A ny person seeking 

 in/or^nation on any scientific question, ike address of 

 any scientific man, or who can in any way use this col~ 

 utnn for a purpose consonant -with the nature ofi the 

 paper ^ is cordially invited to do so. 



WANTED.-By a young man (27), B. A. and Ph.D., 

 with three years' experience as assistant in 

 chemistry, position as instructor in chemistry or in 

 natural sciences in college or academy, or other ad- 

 vantageous position as chemist. Gire particulars 

 as to work, salary, etc. P. "W. MAR, L. Bos 23, West 

 Haven, Conn. 



A YOUNG MAN with an M.S. degree from Cornell 

 University desires a position as Professor or 

 Instructor in JPhysics or Electrical Engineering. 

 Address M. V. P., care Science, 47 Lafayette Place, 

 New jork. 



WANTED— A position as Professor of Science by 

 a teacher of experience who has taken a post- 

 graduate course in biology. Address BOTANIST, 

 care Science, 47 Lafayette Place, New York. 



WANTED— A position in a college to teaCh Geol- 

 ogy, Mineralogy, and Physical Geography by 

 a graduate of a scientific institution and a teacker 

 of experience. Address Box 13, Nantasket, Mass. 



WANTED, Geological Reports of State of New 

 Jersey from 1868 on, except 1880 and 1881. D. T. 

 Marshall, Metuchen, N.J. 



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. 



Exchanges. 



[Freeof charge to all, if of satisfactory character. 

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

 York.l 



For Sale or Exchange for books a complete private 

 chemical laboratory outfit. Includes large Becker b.il- 

 ance (200g to i-iomg), platinum dishes and crucibles, 

 agate motors, glass-blowing apparatus, etc. For sa'.e in 

 part or whole. Also complete file of Silliman^s fournal, 

 1862-1885 (62-71 bound); Smithsonian Reports, 1854-1883; 

 U. S. Coast Survey. 1854-1869. Full particulars to en- 

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



I have five vols, of "Olhausen's Biblical Commentary 

 on the New Testament " that I would like to sell or 

 exchange for works on geology of North America. 



These volumes are as good as new, except the slight 

 fading of the black cloth covers. D. T. Marshall, Me- 

 tuchen, N. J. 



For sale or exchange, extra fine pair ( t and S ) 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 Botanical Gazette, eight vols. Qrevillea^ 

 four vols. Notarisea; stereopticon outfit, with attach- 

 ment for rnicrosccpic projection ; 148 stereopticon slides, 

 illustrating zoology and cryptogams. Wanted — American 

 and foreign works and pamphlets on Vertebrate Palaeon- 

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

 odicals containing contributions to Vertebrate Palaeon- 

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



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

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

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



To be puhVshed in October. 



THE LABRADOR COAST. 



A JOURNAL OF TWO SUMMER CRUISES 



TO THAT REGION. 



WITH NOTES ON ITS EARLY DISCOV- 

 ERY, ON THE ESKIMO, ON ITS PHY 

 SICAL GEOGRAPHY, GEOLOGY AND 

 NATURAL HISTORY, TOGETHER WITH 

 A BIBLIOGRAPHY OF WORKS, ARTI- 

 CLES, AND CHARTS RELATING TO 

 THE CIVIL AND NATURAL HISTORY 

 OF THE LABRADOR PENINSULA. 



By ALPHEDS SPRING PACKARD, ffl.D., Ph.D. 



Sportsmeti and ornithologists will be interested in 

 the list of Labrador birds by Mr. L. W. Turner, 

 which has been kindly revised and brought down to 

 date by Dr. J. A. Allen. Dr. S H. Scudder has con- 

 tributed the list of butterflies, and Prof. John 

 Macoun, of Ottawa, Canada, has prepared tlie list of 

 Labrador plants. 



Much pains has been taken to render the bibliog- 

 raphy complete, and the author is indebted to Dr. 

 Franz Boas and others for several titles and impor- 

 tant suggestions; and it is hoped that this feature of 

 the book will recommend it to collectors of Ameri- 

 cana. 



It is hoped that the volume will serve as a guide 

 to the Labrador coast for the use of travellers, 

 yachtsmen, sportsmen, artists, and naturalists, as 

 well as those interested in geographical and histori- 

 cal studies. 



N. D. C. HODGES, Publisher, 



47 Lafayette Place, New York. 



NEC-DARWINISM AND NEO-LAMARCKISM. 



By LESTEii 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 

 probrem 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 Profes-or 

 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 linfi 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. 



SCIENCE CLUBBING RATES. 



105^ 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. 



Chronic Cough Now: I 



j For It you do not It may become con- I 

 j sumptlve. For Consttmption, Scrofula, I 

 j General Debility and Wasting Diseases, i 



\ there is nothing like I 



i SCOTT'S 



Fmulsion 



Of Pure Cod Liver Oil and 



HYPOPHOSPHITES 



OS Xjime and Soda. 



It Is almost as palatable as milk. Far \ 

 better than other so-called Emulsions. 

 i A wonaerful flesh producer. 



I Scott's Emolsion 



j There are poor imitations. Get the genuine} 



POSTAL DICTIONARY. 



A Manual of Postage Rates, and Information 

 upon Every Postal Subject which concerns 

 Merchants, Professional Men, Occasional 

 Correspondents, and All who Use the Mails. 

 Sixth edition, revised to date. 

 Arranged in dictionary form, comprising about 150 

 titles (with complete index of over 400 references), 

 designed to furnish all facts bearing upon any par- 

 ticular topic, under its subject title. 



* About as convenient a little book as we have seen 

 for some time. Costs only 15 cents, but ought to 

 save at least that amount every other day, directly 

 or indirectly. "" — Chicago Standard. 



"Likely to be of great and constant service to all 

 who make much use of the mails. The ninety-four 

 pages contain a great amount of information, very 

 well arranged, knowledge of which should prevent 

 most of the delays and losses in the mails." — Boston 

 Literary World. 



"Worth its weight in gold to the busy ' man of 

 affairs ' It will enable him to settle almost at a 

 glance the points of inquiry in postal matters that 

 are constantly arising."— iVew York Home Journal. 



"If all who use the mails (and who does not?) will 

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 fewer mrstakes will be possible, and the public will 

 be better served. Its simplicity and low cost will 

 commend it to all. and give it what it deserves, a 

 universal sale."— H^on. Thomas L. James, ex-Post- 

 master General. 



Price, 15 Cents, Postpaid. 



ADDRESS N. D. C. HODGES, 



47 I,afayette Place, NeAV Tfort. 



ESTERBROOK'S 

 STEEL PENS. 



Ot 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. *i6 John St.. New Vork. 



minerals, 



Rocks, 



FossiU, 



Casts oi Fossils, 



Oeological 



Relief ]TIaps. 



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



Send for Circular. ROCHESTER, N. Y. 



StiifTed Animals 



and §kins. 



Mounted 



§keletous. 



Anatomical 



Models, 



I n vertebral es 



