August 11, 1893. 



SCIENCE. 



83 



Physiological Laboratory of the Faculty of Medicine of 

 Paris, is divided into two parts — the first treating the 

 subject theoretically, the second from the technical stand- 

 point. Beginning with a chapter on chemical comjjosi- 

 tion, the author proceeds with a discussion of the phe- 

 nomena of coagulation, of milk secretion, and of the vary- 

 ing composition of different milks. A chapter each is de- 

 voted to woman's milk and to cow's milk, while others 

 treat of the digestibility of milk, infant alimentation, and 

 milk micro-organisms. The technical portion treats of 

 milk analysis and adulteration. Under the first head is 

 given, in detail the admirable method used at the Munici- 

 pal Laboratory of Pai-is, as well as the methods of Grandeau, 

 Quesneville, and Adams. The various rapid methods are 

 discussed in detail, and excellent means for the preserva- 

 tion of milk suggested. The book is new and a welcome 

 addition to our literature on the subject. 



Er. L. Lindet, in his work on Beer, has produced a 

 manual valuable to all interested in Brewing, either as a 

 scientific study or from the purely technical view. The 

 last half of the book is devoted to the jiractical process of 

 brewing, following in main the procedure adopted 

 in France, the limitations of the book preventing a 

 more general discussion. The first part, however, is of 

 wide interest, treating in an attractive and scientific man- 

 ner Parley, Malt, Yeast and Hops, of the processes of sac- 

 charification, and of alcoholic fermentation. A shorter 

 preliminary chapter touches upon the legislation and sta- 

 tistics regarding beer. The book does not impress one as 

 a mere compilation from more exhaustive authors, but is 

 distinctly a treatise upon the state of the science at the 

 present hour, and is a most convenient book for reference. 



These volumes form part of the Encyclopedic Scientif- 

 ique des Aide-Memoire, published under the direction of M. 

 H. Leaute, Member of the Institute of France. This publi- 

 cation, which is distinguished by its practical character, is 

 moreover scientific in its accuracy and in the authorative 



names which appear upon the title pages. "When com- 

 plete (it has been published at the rate of thirty or forty 

 volumes a year since Feb., 1892,) there will be about 31)0 

 volumes uniform in l:)inding and embracing the entire 

 domain of applied science; Mechanics, Electricity, Engi- 

 neering, Physics, Chemistry, Agriculture, Biology, Medi- 

 cine, Surgery and Hygiene. In each case the most com- 

 petent men have been selected to treat of their resi^ective 

 specialties, and while within the limits of an octavo vol- 

 ume of 200 pages it is necessary to leave out much of in- 

 terest, still the authors of those works which it has been 

 my jsleasure to read have accomplished much in their 

 difiicult condensation, treating of their subjects in a fluent 

 manner and omitting nothing essential. Each volume is 

 teiminatod with a bibliography which enables the reader 

 to puisue to its source any particular line of study. 



C. P. 



— The American Book Comjsany have just issued a re- 

 vised edition of "William Swinton's "School History of the 

 "United States," the first edition of which appeared some 

 twenty years ago. As the author is now dead, the re- 

 vision of the work has been done by the editorial depart- 

 ment of the Company, and the history has been continued 

 to the present time. The book is well printed, and con- 

 tains many maps and illustrations. Another book from 

 " the same house is a series of "Exercises in Greek Prose 

 Composition," based on the first four books of the Anab- 

 asis and prepared by "William P. Harjjer, President of 

 the "University of Chicago, and Clarence F. Castle, assist- 

 ant professor of Greek in the same institution. The Com- 

 pany have also issued two volumes of their "English 

 Classics for Schools," one of them containing three of 

 Emerson's essays, and the other being an edition of Mat- 

 thew Ai-nold's "Sohrab and Rustum," with an introduc- 

 tion giving a sketch of his life and writings and some 

 other matter useful to the student. 



IICIOIIS 



Horsford's Acid Phosphate 



with water and sugar only, 

 makes a delicious, healthful and 

 invigorating drink. 



Allays the thirst, aids diges- 

 tion, and relieves the lassitude 

 so common in midsummer. 



Dr. M. H. Henry, New York, says: 

 ""When completely lired out by pro- 

 longed wakefulness and overwork, it is 

 of the greatest value to me. As a bev- 

 erage it possesses charms beyond any- 

 thing I know of in the form of medi- 

 cine." 



Descriptive pamphlet free. 

 Rumiord ('lipiiiical Works. Providpiioe, R. I. 



Beware of Substitutes and Imitations. 



Exchanges. 



[Free o£ charge to all, if of satisfactory character. 

 Address N. D. C. Hotiges, 874 Broadway, New 



I wish to exchange a New Model Hall Type- 

 writer, price $30, for a Daylight Kodak, 4x5 prefer- 

 red. George A. Coleman, Dep't. Agric, Uiv. of 

 Ornithology, Washington, D. C. 



Exchange— The undersigned is desirous of ob- 

 taining correspondents interested in macro-lipidop- 

 tera, in Alaska, the far Western, Southwestern 

 and Southern States. Will also exchange rare 

 lepidoptera for entomological literature. I^evi W. 

 Mengel, Reading, Penn. 



Wanted to exchange— Medical books, Obstetri- 

 cal Transactions, London, Works of Sir J. Y. 

 Simpson, Beck's Medical Jurisprudence. Hand- 

 book for the Physiological Laboratory, by Burnton, 

 Foster, Klein and Sanderson, Quain's Anatomy, 

 and about fifty others. Catalogues given. Want 

 Geological, Botanical and Microscopical books in 

 exchange. Dr. A. M. Edwards, 11 Washington St., 

 Newark, N. J. 



A complete set of Bulletins of U. S. Geological 

 Survey, various reports and bulletins of surveys of 

 Missouri, Arkansas, Minnesota, Alabama, Illinois, 

 New York, Penn,sylvania, Indiana, Ohio and Texas; 

 iron ores of Minnesota; Wailes' Agriculture and 

 (ieology of Mississippi (rare). To exchange for peri- 

 odicals and books on Entomology or for Lepidop- 

 tera. Rev. John Davis, the Deanery, Little Rock, 

 Ark. 



For sale or exchange.— A complete set of the re- 

 port of the last Geological Survey of Wisconsin. 

 T. C. Chamberlin, geologist. It consists of four 

 large volumes, finely illustrated, and upwards of 

 forty large maps and charts. Will sell for cash or 

 exchange for a microscope. Address Geo.- Beck, 

 Platteville, Wis. 



I have a lire-proof safe, weight 1,150 pounds 

 which I will sell cheap or exchange for a gasoline' 

 engine or some other things that may happen to 

 suit. The safe is nearly new, used a short time 

 only. Make offers. A. Lagerstrom, Cannon Falls, 

 Minn., Box 857. - 



Wants. 



\X/ ANTED.— A position as teacher of Biology, by 

 »* an experienced teacher, a college graduate 

 with four university post-graduate courses in the 

 Sciences. Good endorsements, and eighteen years' 

 experience. Address A. N. Somers, La Porte, Ind. 



WANTED.— Assistant in Nautical Almanac office, 

 Navy Department. The Civil Service Com- 

 mission will hold an examination on August 15 to 

 fill a vacancy in the position of assistant (computer) 

 in the Nautical Almanac office. The subjects will 

 be letter-writing, penmanship, trigonometry, rudi- 

 ments of analytical geometry and calculus, loga- 

 rithms, theoi-y and practice of comptitations, and 

 astronomy. Each applicant must provide himself 

 with a five-place logarithmic table. The examina- 

 tion will be held in Washington, and if applications 

 are filed in season, arrangements mav be made for 

 examinations in the large cities. ISlanks will be 

 furnished upon application to the Commission at 

 Washington. 



P) R A F T S M E N WANTED.— The Civil Service 

 *--' Commission will hold examinations on August 

 15 to fill two vacancies in the War Department; one 

 in the position of architectual draftsman, salary 

 $1,400, the other in the position of assistant drafts- 

 man. Quartermaster General's office, salary $1,200. 

 The subjects of the architectural draftsman exami- 

 nation are letter-writing, designing specifications 

 and mensuration, and knowledge of materials; of 

 the assistant draftsman examination they are 

 letter-writing, tracing, topographic drawing and 

 projections. The examination will be held ■ in 

 Washington, and if applications arc filed in season, 

 arrangements may be made for examinations in the 

 large cities. Blanks will be furnished upon appli- 

 cation to the Commission at Washington. 



A YOUNG man who has been through the course 

 ^ in mathematics in Princeton University, 

 wishes some tutoring this summer. Rates reason- 

 able. Address P. H. Westcott, Cramer's Hill, Cam- 

 den Co., N. J. 



A GRADUATE of an American Polytechnic insti- 

 '^ tution and of a German University (Gottingen), 

 seeks a position to teach chemistry in a college or 

 similar institution. Five years' experience in 

 teaching chemistry. Address Chemist, 757 Gary St. 

 Brockton, Mass. 



