SCIENCE. 



[Vol. XVI. No. 388 



DO YOU INTEND TO BUILD? 



We offer an Atlaa of Sensible I.ow Dost 



Houses, a portfolio 11x14 inolies, containing 

 bandsome Illustrations, floor plans, and full 

 descriptions of this popular design, and flfty-four 

 others, ranging in cost from $800 to $7,800. This 

 specimen design Is for a cottage with seven rooms, 

 and costing $1,100. It combines beauty and comfort, 

 has two large porches, and Is a popular and practi- 

 cal working design, having been built several times 

 lor its estimated cost. 



No matter what styln of a house you may intend to 

 build, it win pay you to have this book. 



We will send this Atlas, postpaid, on receipt of 

 price, SI.— N. D. C. Hodges, 47 Lafayette Place, New 

 York. 



BOOKS: How to get tbem. If there is any 

 hook or pamphlet that you want, write to the Science 

 Book Agency, 47 Lafayette Place, New York. 



OFWHAT USE IS THAT PLANT? 



You can find the answer in 



SMITH'S "DICTIONARY OF 

 ECONOMIC PLANTS." 



Sent postaid on receipt of $3.80. Publish- 

 er's price, $3.50. 



SCIENCE BOOK AGENCY, 



47 Lafayette Place, flew ITork. 



CHEMICAL BOOKS FOR SALE. 



Analyst, London (1887-89, July and November 



of 1888 missing) 1.80 



SuGAK Cane, Manchester (1881-83, 1885-86, also 



numbers of 1884, 1887, and 1888) 2.40 



Zeitschript Rubenzuckerindustrie Stammer 



(1885-86, part of 1887) 1.20 



Zeitschript Rubenzuckerindustrie Schublers 



(Vols, xiv.-xvii. inclusive), complete 2.40 



Any of the above will be sent postpaid on receipt 

 of price. 



SCIENCE BOOK AGENCY, 



47 Lafayette Place, New York. 



RUPTURE 



cured in stipulated time. 



NO DELAY FROM WORK. NO OPERATION. 



Call or send stamp for circular and reference of those 

 cured. We have on hand ever 300 styles of trusses, from 

 $1 up, and suspensories of all kinds. Orders filled by- 

 mail or express to any part of the United States. 



C. A. M. BURNHAM, M.D.. 



138 Clinton Place, New York. 



H. D. C. HODGES, 47 Lafayette PL, New York, 



Announces as Just Published, 



Fact and Theory Papers 



THE SUPPRESSION OF CONSUMPTION. 



By Godfrey W. Hambleton, M.D. 12*. 40c. 



"The inestimable importance of the subject, the 

 eminence of the author and the novelty of his work 

 all combine to render the little treatise worthy of 

 special consideration. . . . We heartily com- 

 mend Dr. Hambleton's booklet and wish there were 

 more such works.'"— Editorial, Boston Daily Adver- 

 tiser. 



" The monograph is interesting in style, scholarly, 

 and well worth of careful consideration. It is de- 

 void of technical expressions, and can be easily read 

 and digested." — Pharmaceutical Era. 



"It IS full of facts and wisdom.''''— Philadelphia 

 Saturday Evening Post. 



"The book contains much of importance to the 

 medical fraternity, as well as the general populace." 

 — Burlington Hawkeye. 



" We commend the book to physicians and lay- 

 men." — Herold (German), Milwaukee. 



THE SOCIETY AND THE "FAD."-' 



By Appleton Morgan, Esq. 12*. 30 cents. 



" Mr. Morgan founds a sensible and interesting 

 address upon a text furnished by a sentence from a 

 young ladies' magazine ; namely, ' Browning and 

 Ibsen are the only really dramatic authors of their 

 century.'" — New York Sun. 



"In the little book before us the treatment of the 

 subject is dispassionate and logical. The compari- 

 son drawn throughout this monograph is between 

 Shakspeare and Browning, the subject-matter being 

 largely based on the Browning and Shakspearian 

 societies and how tbey came to exist A pleasant 

 half-hour or more may be spent over the book, and 

 some useful information derived from it." — Engle- 

 wood Times. 



PROTOPLASM AND LIFE. 



By C. F. Cox. 13°. 75 cents. 



The author of this book was for some years presi- 

 dent of the New York Microscopical Society, and in 

 this volume he sets forth his views on the spontane- 

 ous generation theory and its relation to the general 

 theory of evolution, and on protoplasm and the cell 

 doctrine. 



Ready at an early date. 



THE CHEROKEES IN PRE-COLUMBIAN TIMES 



By Cyrus Thomas. 12«. $1. 

 Dr. Thomas in this work will reverse the usual 

 method of dealing with prehistoric subjects ; that is 

 to say, he will commence with the earliest recorded 

 history of the tribe as a basis and t' ace the chain 

 back step by step by the light of the mounds, tradi- 

 tions, and other evidence, as far as possible. He 

 has already presented to the public some reasons 

 for believing the Cherokees were mound-builders, 

 but additional evidence bearing on the subject has 

 been obtained. A more careful study of the Dela- 

 ware tradition respecting the Tallegwi satisfies him 

 that we have in the Bark Record (Walam Olum) 

 itself proof that they were Cherokees. He thinks 

 the mounds enable us to trace back their line of 

 migration even beyond their residence in Ohio to 

 the western bank of the Mississippi. The object is 

 therefore threefold: 1. An illustration of the re- 

 verse method of dealing with prehistoric subjects ; 

 2. Incidental proof that some of the Indians were 

 mound-builders ; 3. A study of a single tribe in the 

 light of the mound testimony. This work will be an 

 important contribution to the literature of the Co- 

 lumbian discovery which will doubtless appear 

 during the coming two years. 



THE TORNADO. 



By H. A. Hazen. 13*^. $1. 



Professor Hazen is one of the prominent meteor- 

 ologists connected with the United States Signal 

 Office. In this work he reviews our present infor- 

 mation as to tornadoes, severely criticising some of 

 the opinions held in regard to them up to this time. 

 No one has given a more careful study to these de- 

 structive storms than has Professor Hazen, and his 

 book will prove a decided contrioution to the 

 world's knowledge. In this book will be found a 

 careful discussion of the important question of 

 Tornado Insurance now attracting so much atten- 

 tion. Hundreds of dollars may be saved by people 

 who are thinkiog of such insurance by following the 

 principles here made plain. 



In Preparation. 

 Foods and Food Adulterants. 



By Edgar Richards, Ex-president National Chem- 

 ical Society. 



Color in Nature. 

 By G. Brown Goodk and others. 



Wants. 



A ny person seeking a position /or lukich he is quali- 

 fied by his scientific attainments., or any person seeking 

 some one to Jilt a position 0/ this character^ be it that 

 0/ a teacher 0/ science^chemist, draughtsman., or -what 

 not. may have the * Want'' inserted under this head 

 FREE OF COST, if he satisfies the publisher 0/ the suit- 

 able character oj" his application A ny person seeking 

 information on any scientific question^ the address t?/ 

 any scientific man, or who can in any 7u>iy use this col- 

 umn/or a purpose consonant -with the nature 0/ the 

 paper., is cordially invited to do so. 



AN EXPERIENCED TEACHER desires to hear of 

 a town in which he can establish a high school. 

 Or, he will lease an academy. Address, G., Lock 

 Box 19, Sufiem, N. Y. 



WANTED.— By a lady-graduate of ComeU Uni- 

 versity, position as teacher in high school, 

 seminary or college ; prepared to teach the follow- 

 ing branches, employing, so far as is practicable, 

 the laboratory method : Geology. Botany. Zoology, 

 Physiology ; also, if desired, Physics, Chemistry, 

 Logic and Psychology. References to heads of 

 above-named departments in Cornell University. 

 JENNIE T. MARTIN, care Cornell University, 

 Ithaca, N. Y. _ 



A GENTLEMAN of experience, highly recom- 

 mended, liberally educated at home and abroad, 

 desires to correspond with parties needing an in- 

 structor in the classics or modern languages in a 

 high grade institution. Address EARLHAM, Ger- 

 mantown. Pa. 



W^ 



ANTED.— At the Bryant Summer School, Ros- 

 lyu, L. I , a Lady to teach Sea-Life, and other 

 Sciences. July 8-Sep. 8. Ten weeks to six months 

 according to her convenience. Other papers please 

 cop y. E. HINDS, A.M ., Prin cipal. 



ITt/" ANTED— Information concerning the produc- 

 VV tion of Mushrooms in eaves and other places. 

 Address M. H. CRUMP, care Ky. Geological Survey, 

 Frankfort, Ky. _^ 



A YOUNG MAN, graduate from an American Col- 

 lege, who has studied a year in Germany, and 

 is now studying in Paris, would like professorship in 

 chemistry. References from some of the best chem- 

 ists. Address CHARLES E. LINEBARGER, Post- 

 Restante, Paris, France. 



WANTED.— An opportunity to study qualitative 

 analysis in or near New York City during the 

 summer. W. J. L., 130 Spring st.. Sing Sing, N.Y. 



A SSAYER.— Wanted position as above, has had 

 three years' practical experience in a London 

 firm of assayers to the Bank of England, Royal Mint, 

 etc., etc. Thorough knowledge of bullion assaying, 

 and of gold, silver and lead ores. I. FRED. JOHN- 

 SON, Northgate Brewery, Canterbury England. 



Exchanges. 



fFreeof charge to all, if of satisfactory character. 

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

 York.] 



For exchange — 14 volumes (1883-1880) American Jour- 

 nal of Science, 10 volumes (1880-1889) American Natu- 

 ralist, 21 volumes (1879-1 90) Knglish Mchanic, all in 

 good condition for binding ; also. Morris Typewriter. 

 Wants fir>t-class microscope, cameia, chemii al or physi- 

 cal app.ratus. Ad'iress. with full particulars, E. R. 

 Chadbourn, Lewiston, Maine. 



^yanted, - To exchange land and fre h-water mollusca, 

 (principally Helices Achotinellae. Clausiliae and Lim- 

 naeae,)for those not in my (ollection. Li.-sts exchanged. 

 Address E H. White, Box 200, Astoria. Or. 



Metenrltes.-Mr. George F. Kunz, it to 15 Unirn 

 Square. New Y. rk, or Hoboken. N. J., will buy or give 

 in exchange for whole or parts of meteorites. Whole 

 ones, undescribed ones, and entire falls especially de- 

 siied. 



Wanted— To furnish roots of Dodecatheon Meadia^ 

 Sarracenia purpurea, and other wild flowers, native of 

 Southern Wisconsin, in quantities D. E. Willard, Cu- 

 rator of Museum, Albion Academy, Albion, Wis. 



I have a number of duplicates of microscopic slides, 

 mostly botanical, which 1 would like 10 exchange for 

 oihers not now in my collection. Send list of what you 

 have to exchange and get my list. S. R. Thompson, 

 New Wilmington, Pa. 



THIRn EniTIOJ^. 



THE FAULTS~OF SPEECH 



BY 



A. MELVILLE BELL, 



Author of " Visible Speech," etc., etc. 



The Faults of Speech is a Self -Corrector 



and Teacher's Manual, for the removal of all 



Impediments and Defects of Articulation. 



eo Cen-ts- 



*^* Sent postpaid on receipt of price, 



N. D. C. 



HODGES, 47 Lafayette Place, 



NEW YORK. 



