iii: Institutc and dealing with various special phases of t h e cheniistn of paper-inaking and the chemical and physical properties of paper. 1701, I1 opens with a thoughtful discussion of Technical Ixducation a s .\pplied t o Paper-inaking, while t.lic I)od!- of the \-olunic is made up of thc carefully considered answers rnade by the author t o the questions propounded by the Cit\; and Guilds of I,onclon Institute t o candidates who had taken its Course iii Paper Nanufacturc. As t o the questions themselves it may be said that vcry few -American paper mills superintciidents could hope t o pass the:ll with credit. 11r. J3cadle's answers co\'er in what is usually an eininently practical way m a n y subjects oi which p p e r - m a k e r s gcnerally have only the most empirical knowledge and as t o which it is only fair t o say t1ir.J- Ii~ivefcw wurccs oi information. Volumes 111 and IV are the outcome of the publication by I ' r i p c y and Pulp of a series of test questions on paper-making technolog!. addressed t o workers in I2nglish mills. 'I'hcse questions ch-eloped a n astonishingli. frank and intelligent discussion of the subjects propounded, and in these last two \ . o l ~ n N r . 1katllc has Iirouglit togctlicr allstracts of the best arisircrs t o each question and has extended and unified t h e whole by critic,il discussion :!iitl co:iiiiients oi his owii. In spite of t h e serious handicap which t h c :Iiethod of trcatnxnt has i:iiposcd 011 the author, thcsc \.olunirxs \vi11 w l l rqxiy careful study by all who have t o do with the a r t of paper-making. A. D. LITTLE.
The Principles of Copper Smelting. By I < ~ I v . ~ R IDYER ) PETERS,Professor of XIetallurgy, Harvard Vniwrsity. Hill Publishing Co., Kew Tork and London. Price, S j . 0 0 .
l\'ThocLvc,rwill carefully read through ('\.cry pagv of this hook of 50q pages will undoubtedly ha\.c l)eco:i:c acquainted with the principles upon which the modern practice of copper smelting is hascd. He would hardly, however, agree with the statement t h a t it represents a boiling down of principles; rather would he lie lilicl!- to consider t h a t the explanation of these principles could have heen made considerably more concise. 'rhis extended stJ-le is no doubt admirable in a lecture room, b u t makes continuous reading rather wearisome. I t is, nevertheless, a most instructive book. 'The facts are clearly stated, and the reasons gone into thoroughly , examples and problems being continually given t o elucidate the various points, and the influence of business considerations is kept constantly in view. T h e work is divided into fifteen chapters, cmbracing: Methods and Collectors; 1:irst Principles of Smelting; Principles of Roasting; Chcinistry of Smelting; Practice of Roasting; Blast 1:urnace Snielting ; lies-erbcratory Smelting ; Pyrite Smelting; practical Study of Slag.; Matte; Production of Metallic Copper froni M a t t e ; Refining of Copper; Principles of Furnace Building; Applica-
RECENT PUBLICATIONS.
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tions of Thermochemistry; Miscellaneous and Commercial. The chapter on blast furnace smelting contains a very interesting description of the development of the gigantic furnaces constructed by E. P. Matthewson a t Washoe, Anaconda, Montana, smelting 3,000 tons of charge per 24 hours. The chapters dealing with pyrite smelting are largely written and are reviewed by R. Sticht, of the Aft. Lye11 mine in Tasmania. Throughout the parts dealing with Bessemerizing methods, it is disappointing t o find t h a t no credit is given t o the pioneer work of the recently deceased John Holloway, of London (in whose laboratory the reviewer found his first occupation), who clearly foresaw, and endeavored t o put in practice the principles of these methods, and from the adoption of which others have received the rewards. The chapter on Therrnocheniistry is written by Prof. Joseph W. Richards, of Lehigh University. In the portion dealing with the refining of copper, but passing mention is made of the electrolytic methods, as they are of very special nature, and the a r t has a literature] though a meagre one, of its own. While the book is primarily intended for students, and for those who have not an exact knowledge of chemistry, it should be found useful t o all who have interests in the mining, refining, or chemistry of copper. T. LYNTON BRIGGS.
RECENT PUBLICATIONS. BAUER,HUGO. HISTORYOF CHEMISTRY. New York, Longmans Green & Co. 1907. $1. BOTI%ER,M. HARZEu. HARZINDUSTRIE Hanover: 190;. 291 ss. M. 4,40. DUCHEMIN, R. La D~NATURATION DE L’ALCOOL en France et dans les principaux pays d’Europe. Paris: 1907. 8vo. 280 p. M. 6,80. Miinchen : 1907. DUNBAR.LEITFADENFUR DIE ABWASSERREINIGUNCSFRAGE. 386 ss. mit 150 Fig. gr. 8. M. 9. FERCHLAND, P. DIE ENGLISCHEN ELEKTROCHEMISCHEN PATENTE. Ausziige aus den Patentschriften mit Sach- und Namenregister. Band I : Elektrolyse. Halle: 1907. gr. 8. M. 9. FISCHER,E. UNTERSUCHUNGEN IN DER PURINCRUPPE (I 882-1906). Berlin: 1907, gr. 8. 608 ss. M. IS. CHEMISTRY.New York: Hill Publishing Co. 1907. GILL, A. H. ENGINE-ROOM 198 PP. $1. GODCHOT, M. CONTRIBUTION A L%TUDE DES HYDRURESD’ANTHRACBNES ET DE LEURS DBRIVBS. Paris: 1907. 8vo. 71 p. M. 4,80. GOTTSCHALL, M. LEITFADEN DER CHEMIE NACH DEM ARBEITSPRINZIP.(2 Teile). Teil I : Metalloide. Mtinchen: 1907. gr. 8. I I Z ss. mitt 77 Fig. M. I,ZO. HEMMELMAYR, F. v. UND BRUNNER,K. LEHRBUCH DER CHEMIE U N D MINERALOCIE. 3. Auflage. Leipzig: 1907. gr. 8. 184 ss. M. 2,60. OF PHYSICAL CHEMISTRY. 3RD Edition revised and JONES, H. C. ELEMENTS enlarged. New York: The Macmillan Co. 190j. 8vo. $4. KAHLENBERC, L. LABORATORY EXERCISES IN GENERALCHEMISTRY. Madison, Wis. 1907. Izmo. 204 p. b.80.
