March 17, 1893.J 



SCIENCE. 



153 



handy in form and weight, and, in our opinion, will be found 

 useful to all engineers engaged, or likely to be engaged, in any 

 kind of hydraulic work. 



AMONG THE PUBLISHERS. 



Of the International Education Series published by the Apple 

 tons more than twenty volumes have now been issued, one of the 

 latest of which is " Rousseau's Emile," abridged, translated, and 

 annotated by William H. Payne of the University of Nashville. 

 It is not a mere series of extracts, but a judicious condensation, 

 forming a continuous work and giving as much of the original as 

 reader> of our time are likely to care for. The important and 

 wid?-reaching influence of Rousseau's work has been due in the 

 main to his perception of the grand truth, previously too little re- 

 garded, that the child's facullies have a certain natural course of 

 development, and that, if education is to be successful, it must be 

 in harmony with that development. Unfortunately, he knew 

 but little of what that course of development really is, and his 

 practical plans for meeting it were about as inappropriate as they 

 well could have been ; and whoever should adopt them would tlnd 

 in the end. if not sooner, that he had followed anything but 

 nature. Rousseau's notions that the child ought not to do any- 

 thing against his will, that children have and can have no moral- 

 ity, and that all wickedness is weakness, are both false and mis- 

 chievous; and many others of like character might be cited. 

 Moreover, though a vehement democrat in politics, he would re- 

 fuse the benefit of education to the poor, expressly saying that 

 "the poor man has no need of an education," and he held that 

 women ought to be educated merely to please men. Mr. Payne 

 is clearly conscious of these faults in Rousseau's work, and sharply 

 animadverts on some of them in the short but very suggestive 

 notes that he has furnished to this volume. Moreover, he does 

 not hesitate to attack some of the educational fads of the time; 

 and his comments add much to the value of the book. Indeed, 



we think the public would be glad to receive from him an inde- 

 pendent work of his own, in which his views might be stated 

 more at large. 



— Charles Scribner's Sons have in preparation ' ■ How to Know 

 the Wild Flowers," by Mrs. William Starr Dana, with 100 illus- 

 tration by Marion Satterlee. 



— The latest issue in Scribner's series on the Great Educators 

 treats of " Froebel and Education by Self-activity." Thefauthor 

 is an Englishman, Mr. H. Courthope Bowen, who is an enthusi- 

 astic disciple of Froebel, and has had much practical experience 

 of kindergarten work. We cannot say, however, that his book 

 is a quite satisfactory treatment of its theme, the literary form of 

 it being in some respects defective. There is a good deal of 

 repetition in it, as indeed the author himself admits, and the 

 sentences are often loaded down with parenthetic expressions 

 which make them awkward and sometimes obscure. The first 

 two chapters relate the principal events of Froebel's life, the pro- 

 cesses of his oivn education and his various experiences and ex- 

 periments as a teacher. Then follows a notice of his philosophy, 

 which, however, Mr. Bowen makes no more intelligible than 

 others have done, and then an exposition of his theory of educa- 

 tion. The remainder of the book is devoted to a description of 

 the kindergarten and other contrivances that Froebel designed, 

 with some account of his relation to earlier and later educators, 

 thus giving on the whole as full an exposition of his views and 

 methods as most teachers will desire. As to the vaJue of those 

 methods themselves, we have not space to speak largely; but we 

 cannot help thinking that both Froebel and Pestalozzi are at 

 the present day greatly overrated. Their methods are only 

 adapted to a few years of early childhood, and are not perfect 

 even for that period; while their prejudice against book-learning 

 was little short of barbarous. Nevertheless, whatever is good in 

 their systems we want, and we trust that our teachers will not 

 fail to appropriate it. 



Bifspepsia 



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 

 Rumlord Chemical Works, Providence. R. I. 



15eware of Substitutes and Imitations. 



For sale by all Druggists. 



Exchanges. 



[Freeof charge to aU, if ofsatisfactory character. 

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



For sale— A Zentmayer new model U. S. Army 

 Hospital monocular stand. Price SllO, will sell for 

 SrS. Address H. C. WeUs, No. 151 Broadway, New 

 York. 



For sale— A complete set of the third series of the 

 American Journal of Science (1870-1893) handsomely 

 bound in single volumes in dark brown half moroc- 

 co. Address G. H. Williams, 803 Cathedral Street, 

 Baltimore, Md. 



For sale, or for exchani^re for books on medi- 

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

 logical library, containing nearly all the State and 

 G-overoment Reports sincB lSn5. "Will be pleased to 

 answer letters of inquiry and give information. 

 Address R. ELLSWORTH CALL, Louisville, Ky. 



Forexchange.-Slidps of Indian Territory Loup 

 Fork Tertiary Diatoms fftr other microscopic fos- 

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

 Lawience, 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 

 (Isthmia nervosa), unmounted, from San Francis- 

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



For sale or exchange. — I 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 ea'^tern or foreign lo- 

 calities or Indian relics: tin ore, metacinnabarite, 

 stibnite, garnierite, calenanite, hanksite, ulexite, 

 rubellite, lepidolite, 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, Cai. 



For sale or exchange. — A private cabinet of about 

 200 species of fossils, well distributed geologically 

 and geographically. Silurian, about 40; Devonian, 

 about 50; Carboniferous, about 80; others, about 30. 

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



Wants 



WANTED— Second-hand copy Tryon's Systematic 

 Conchology. Please quote condition, date, price. 

 H. L. Osborn, Hamline University, St. Paul. Minn. 



A COMPETENT TEACHER of botany 

 t\ or university is open to engagement. 

 L.. Box 86, Rochester, Mich. 



^AN any one inform me as to the age to which 

 cats have lived? IJiave one twenty years old 

 A-r. tir-.-.^ .».-.- . Eighty-first St., New York. 



Edward D. Webb, 133 



W 



ANTED — Second-hand. Poster'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. 



A GRADUATE ENGINEER will give instruction 

 evenings in geometry, trieonometry 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., lOi 

 Tribune Building, New York. 



WANTED.— By well - qualified and experienced 

 science master and associate of the Royal 

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

 England), a mastership in 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. 



•^NEW ARC LAMP 



I COLLEGE PROJECTOR 



If: ll send'-.for circular to 



tllj.W.QUEEN&CO. 



