February 24, 1893. J 



SCIENCE. 



Ill 



bers of structures variously strained. Rankine"s unique studies, 

 and the graphics of that author and of continental writers, find 

 illustration and useful application in intelligible and practically 

 available shape; and the methods of connection of parts in prac- 

 tical construction are given in a form likely to meet the approval 

 of the practitioner, as well as of the learner. Tables of constants 

 for use in connection with computations of proportions of parts, 

 and good illustrations, are distributed throughout the book. The 

 work is somewhat extensive, even for students in engineering 

 schools, and will prove valuable for office use as well as in the 

 claasroom. We observe that it is dedicated to Mr. Wm. Mc- 

 Donald, the generous donor of the new engineering buildings 

 and equipment of McGill University; a graceful and well- 

 deiserved compliment to a man who has done more, perhaps, than 

 any other citizen of Canada to promote this essential element of 

 modern progress in his native State. The composition and print- 

 ing are excellent; but the paper is thin, probably designedly so, 

 in view of the fact that the volume is a bulky one at best. The 

 book is well worth its price. 



AMONG THE PUBLISHERS. 



The Century Co. is about to publish "A Handbook of Invalid 

 Cooking," by Mary A. Boland, insti-uctor in cooking in the Johns 

 Hopkins Hospital Training-School for Nurses. The book is in- 

 tended notorly fornurses in training-schools and private practice, 

 but for all who care for the sick. Besides recipes, menus, sug- 

 gestions for the proper feeding of children, etc., a part of the 

 book is devoted to " Explanatory Lessons," wherein the various 

 food principles are described, with chapters on Nutrition, Diges- 

 tion, Chemical Changes in Food, etc. 



— J. J. Audubon, the great naturalist, wrote, many years ago, 

 the story of his youth for his children. It was found accidentally 

 in an old volume where it had long been hidden, and is to be 

 printed for the first time in its entirety in Scribner''s Magazine 



for March. The youth of Audubon vvas most romantic, and at 

 times exciting, and his story of it is told with an ingenuous charm 

 which makes it as interesting as a novel. 



— Professor Henry Drummond will deliver the Lowell lectures 

 at Boston this spring. The subject will be " The Evolution of 

 Man." Professor Drummond has not yet decided as to the date 

 of the publication of these lectures, but has taken steps to pro- 

 tect his copyright in America. 



— Professor William Holms Chambers Bartlett, the author of 

 "Treatise on Optics" (New York, 1839), '• Synthetical Mechanics" 

 (1850), " Analytical Mechanics" (1853), and "Spherical Astron- 

 omy" (1855), died at his home in Yonkers, N.Y., on the 11th of 

 February, aged eighty-nine. 



— -Instances of the recognition of the claims of science by the 

 general press are always worth chronicling. It is therefore not 

 without interest that we notice that the Queenslander (a Brisbane 

 weekly) is issuing a series of extended descriptive articles on the 

 Butterflies of Queensland, the work of an entomologist writing 

 under the worn de plume of " Aurelia." This, we believe, is the 

 first attempt to accomplish a connected account of Australian 

 Ehopalocera, and, as Queensland contains by far the larger pro- 

 portion of the species inhabiting the Australian sub-regions, 

 these contributions to science are of especial significance. 



— Charles Scribner's Sons are preparing a novel and interesting 

 contribution to the World's Fair in the form of an "Exhibition 

 Number" of Scribner's Magazine to be published simultant ously 

 with the opening of the Exposition at Chicago. It is not pro- 

 posed that the text shall relate chiefly to the Fair, but, on the 

 contrary, the leading writers and artists have been asked to con- 

 tribute to the number what they themselves think will best repre- 

 sent them. The pages of text and illustration will be largely 

 increased, and the appearance of the number is likely to be looked 

 for with eagerness by all readers interested in the work of 

 American magazines. 



Dr. T. H. Andrews, Jefferson 

 Medical College, Philadelphia, says of 



Horsford's Acid Phosphate. 



" A wonderful remedy which gave me 

 most gratifying results in the worst 

 forms of dyspepsia." 



It reaches various forms of 

 Dyspepsia that no othei medi- 

 cine seems to touch, assisting 

 the weakened stomach, and 

 making the process of diges- 

 tion natural and easy. 



Descriptive pamphlet free on application to 

 Rumtord Chemical Works. Providence, R. I. 



Beware of Substitutes and Imitations. 



For sale by all Druggists. 



Exchanges. 



[Preeof enlarge to all, if of satisfactory character. 

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



For sale, or for exchange for books on medi- 

 cine or surgery, new editions only, a large geo- 

 logical library, containing nearly all the State and 

 G-overnment Reports since ISiiS. 'Will be pleased to 

 answer letters of inquiry and give intormation. 

 Address B. ELLSWORTH CALL, Louisville, Ky. 



For exchange,— Slides of Indian Territory Loup 

 Fork Tertiary Diatoms for other microscopic fos- 

 sils. Address S. W. WILLISTON, Univ. of Kansas, 

 Lawrence, Kans. 



For exchange. — Will exchange an " Ideal '' Mi 

 croscope of R and J. Beck, London, 2 eye pieces 

 3 objectives, 3 inch, 1 inch, 1-6 inch ; bulPs eye con 

 denser on stand, substage condenser, mechanica 

 stage, etc., for any of the leading makes of type 

 writers. Particulars by mail. DELOS FALL, Albion 

 College, Albion, Mich. 



Sale, or exchange for similar material ; Diatoms 

 (Istbmia nervosa), unmounted, from San Francis- 

 co Bay. M. J. ELROD, Bloomington, 111. 



For sale or exchange. — T have a few copies of my 

 translation of " Strasburger's Manual of Vegetable 

 Histology, 1887," now out of print, which I will send 

 post-paid for $3 or for one dozen good slides Illus- 

 trating plant or animal structure. Address A. B. 

 Hervey, St. Lawrence University, Canton, N. Y. 



The undersigned has the following specimens to 

 exchange for crystals of any eastern or foreign lo- 

 calities or Indian relics: tin ore, metacinnabarite, 

 stibnite, garnierite, calenanite, hanksite, ulexite. 

 rubellite,Iepidolite, blue and green onyx, Cal. pine- 

 ite, aragonite on chalcedony, cinnabar, double re- 

 fracting spar, clear and clouded, and others. J. R. 

 Bush, care of General Delivery, Los Angeles, Cal. 



For sale or exchange. — A private cabinet of about 

 200 species of fossils, well distributed geologically 

 and geographically. Silurian, about 40; Devonian, 

 about 60; Carboniferous, about 80; others, about 30. 

 Frank S. Aby, State University, Iowa City, la. 



For exchange.— Minerals, fossils, F. W. shells, 

 land shells, native woods, Indian relics, two vols, 

 of Smithsonian reports, odd numbers of scientific 

 magazines, copper cents, etc., for good minerals 

 not in my collection, good arrow- and spear-beads 

 and natural history specimens of all kinds. Cor- 

 respondence solicited with list of duplicates. G. 

 E. WeUs, Manhattan, Kan. 



Wants. 



CAN any one inform me as to the age to which 

 cats have lived? I have one twenty years old. 

 Edward D. Webb, 1-32 ■«. Eighty-first St., New York. 



ANTED — Second-hand. Foster's Physiology, 

 Balfour's Comparative Embryology, Claus & 

 Sedgwick's Zoology, Flower's Osteology of Mam- 

 malia, Vine's Physiology of Plants, Please state 

 editions and prices asked and address Richard 

 Lees Brampton, Ontario, Canada. 



WANTED.— American Journal of Conchology, 

 seven volumes. Parties having these for 

 sale will please address the undersigned, stating 

 condition and price. R. Ellsworth Call,Louisville,Ky. 



GRADUATE ENGINEER will give instruction 

 venings in geometry, trigonometry and sur- 

 veying, mechanics, physics, mechanical drawing 

 and general engineering construction. Five years' 

 experience in field and editorial work on engineer- 

 ing journal. References furnished, C. S. H., 102 

 Tribune Building, Now York. 



W' 



A 



WANTED.— By well -qualified and experienced 

 science master and associate of the B -yal 

 School of Mines, London, aged 26 (at present in 

 England), a mastership 'D technical college or uni- 

 versity for any of the following subjects: Engineer- 

 ing sciences geology and mineralogy, physics, chem- 

 istry and metallurgy, etc.. etc. Can provide excel- 

 lent references and credentials. Apply, J. G., 17 

 Sussex St., Rochdale. England. 



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,' 00 specimens, all named, with at out the 

 same number of duplicates, in minerals, crystals, 

 rocks, gems, fossils, shells archceological and ethno- 

 logical specimens and woods to any institution de- 

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

 crease the cabinet to SO.OuO specimens in two years 

 and will act as curator Correspondeace solicited 

 from any scientific institution. J. W. Hortter, 

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

 Delivery. 



POPULAR MANUAL OF VISIBLE SPEECH AND 

 VOCAL PHYSIOLOGY. 



For use in Colleges and Normal Schools. Price 50 cents 



Sent free by post by 



N. D. C. BODGES, 874 Broadway, N. ¥. 



