Eminent chemists of our time . n of glycocoll and of tartaricacid by Mr. Perkin conjointly with Mr. Duppa affordother admirable examples of synthetical research. . It is seldom that an investigator of organic chemistryhas extended his researches over so wide a range as isthe case with Mr. Perkin, and his work has always com-manded the admiration of chemists for its accuracy andcompleteness, and for the originality of its conception. In 1881 Perkin turned his attention in an entirely newdirection, that of the relationship between the physicalproperties and the chemical constitution of substance
Eminent chemists of our time . n of glycocoll and of tartaricacid by Mr. Perkin conjointly with Mr. Duppa affordother admirable examples of synthetical research. . It is seldom that an investigator of organic chemistryhas extended his researches over so wide a range as isthe case with Mr. Perkin, and his work has always com-manded the admiration of chemists for its accuracy andcompleteness, and for the originality of its conception. In 1881 Perkin turned his attention in an entirely newdirection, that of the relationship between the physicalproperties and the chemical constitution of , Briihl,_and others .were already busy con-necting such physical manifestations as refraction anddispersion with chemical constitution. Perkin nowintroduced a third physical property, first discovered byFaraday: the power substances possess of rotating theplane of|(^ajrisatio^ when placed in ^magnetic field. With this general topic Perkjl^was engaged to theyear of his death. His work hat thrown a flood of light. WILLIAM HENRY PERKIN upon the constitution of almost every type of organiccompound, some, such as acetoacetic ester and benzene,being of extraordinary fascination to every chemist. There are chemists—and H. E. Armstrong is amongthem—who regard this phase of Perkins life work ashis crowning achievement. If it has not received suchgeneral recognition as his earlier work, that is to belargely ascribed to a lack of knowledge of physics whichprevailed among chemists until quite recently. How-ever, even as far back as 1889 Perkin was presented withthe Davy Medal of the Royal Society as a reward for hismagnetic studies. The year 1906 marked the fiftieth anniversary of thefounding of the coal-tar industry, and the entire sci-entific world stirred itself to do honor to the meeting was held on July 26 of that year at the RoyalInstitution in London, over which Prof. R. Meldola, thepresident of the Chemical Society, presided, and thosein attendance include
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectchemistry, bookyear19
