American chemical journal . rmula, r -, looa we get from our data, where the usual 200 mm. tube is used, ^^ o ^ ° = r ,-7^— or C = — ^ 200 XC The construction or normal weight calculated from this equationis , or a tenth of a gram more than Laurent gives as thecorrect one for his instrument; but it is undoubtedly the correctone to use, as has been proved by Sidersky, and by experiments inthe Laboratory of the Department of Agriculture. Trusting that this note may prove of interest to some of yourreaders, and save them from some annoyingly low results inpolar
American chemical journal . rmula, r -, looa we get from our data, where the usual 200 mm. tube is used, ^^ o ^ ° = r ,-7^— or C = — ^ 200 XC The construction or normal weight calculated from this equationis , or a tenth of a gram more than Laurent gives as thecorrect one for his instrument; but it is undoubtedly the correctone to use, as has been proved by Sidersky, and by experiments inthe Laboratory of the Department of Agriculture. Trusting that this note may prove of interest to some of yourreaders, and save them from some annoyingly low results inpolarising high-grade refined sugars, I am Very truly yours, Clifford Richardson. Notes. 73 On a Neiv Apparatus for the Contbnious Extraction of Solids bya Volatile Solvent.^ The authors have devised a new form of extraction apparatuswhich is so satisfactory to them that they think that a briefdescription of it may be of interest to other chemists. It consistsof three parts : the flask A, the condenser B, and the perforated.
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherbalti, bookyear1879
