1890. Sullo stato attuale delle teorie riguardanti il potere rifrangente dei composti organici. (Jan. 1.) Sur la constitution des spectres linéaires des éléments chimiques. (Read Feb. 24.) Herr Dr. H. Kayser und meine mathematische Spectralanalyse. (March 8.) Propriété fondamentale commune aux deux classes de spectres. Caractères distinctifs de chacune des classes. Variation périodique à trois paramètres. (Kead April 8.) Ueber das sogenannte zweite oder zusammengesetzte Wasserstoff spectrum von Dr. B. Hasselberg, und die Structur des Wasserstoffs. (Read April 17 and Oct. 9.) Ueber den Bau der Linienspectren der chemischen Grundstoffe. (April.) On a Method of Discriminating Real from Accidental Coincidences between the Lines of Different Spectra. (June.) Das Minimum der Ablenkung eines Lichtstrahls durch ein homogenes Prisma. (June.) Der Satz vom Minimum der Ablenkung beim Prisma. (June.) On the Relations between the Lines of Various Spectra, with special Reference to those of Cadmium and Zinc; and a Re-determination of their Wave-Lengths. (July.) 'Gazz. chim. ital.' xx. 1– 18. 394-397; 'C. R.' CX. 'Zeitschr. f. physikal. Chem.' v. 222-232; 'Nature,' xli. 431 (Abs.); Chem. News,' lxi. 145 (Abs.); Beiblätter,' xiv. 507-509 (Abs.) 'Chem. Zeitung,' xiv. 325– 328; Chem. News,' lxi. 159. 'C. R.' cx. 748-750; 'Nature,' xli.756 (Abs.); 'Beiblätter,' xiv. 616 (Abs.); 'Zeitschr. f. physikal. Chem.' vi. 87 (Abs.) Anzeiger d. k. Akad. Wien,' xxvi. 70–71, 196– 201; 'Monatshefte f. Chem.' xi. 129-130, xiii. 111-145; 'Zeitschr. f. physikal. Chem.' vi. 593 (Abs.); Chem. News,' lxii. 288-289, lxiii. 13 (Abs.); Beiblätter,' xiv. 779 (Abs.) Zeitschr. f. physikal. Chem.' V. 227-232; 'Phil. Mag.' [5], xxix. 331-337; 'J. Chem. Soc.' lviii. 674-675 (Abs.) Phil. Mag.' [5], xxix. 462466. THEORETICAL PAPERS, 1891, 1892. 1891. Analysis of the Spectrum of Sodium, including an Inquiry into the True Place of the Lines that have been regarded as Satellites. (Read March 26 and May 22.) Méthode nouvelle pour la recherche des bandes faibles dans les spectres de bandes. Application aux spectres des hydrocarbons. (Read March 31.) On the Relations between the Lines of Various Spectra. (April.) On Homologous Spectra. (Sept.) On Selective and Metallic Reflexion. (Read Nov. 12.) Analysis of the Spectrum of Sodium, including an Inquiry into the True Place of the Lines that have been regarded as Satellites. (Read Nov. 18.) Uebersichtliche Darstellung der mathematischen Theorien über die Dispersion des Lichtes. I. Theil. (Hannover, Bacmeister, 1890. 50 pp.) II. Theil. Anomale Dispersion. (Erfurt, Bacmeister. 1891. 54 pp.) 1892. Ueber das sogenannte zweite oder zusammengesetzte Wasserstoffspectrum von Dr. B. Hasselberg, und die Structur des Wasserstoffs. 1. Theil. Empirisch-Induction-Abtheilung. (Read Feb. 4.) Essay on the Theory of Dispersion and Absorption.(InRussian.) (Feb.) Sul potere rifrangente per un raggio di lunghezza d'onda infinita. (March.) On the Line Spectra of the Elements. (May.) On the Line Spectra of the Elements. (June.) Das Grenzbrechungsexponent für unendlich langen Wellen. Transformation der Dispersions. gleichungen. (Aug.) Trans. Roy. Soc. Dubl.' [2], iv. 563-608; 'Proc. Roy. Soc. Dubl.' [N.S.], vii. 201-203 (Abs.); 'Phil. Mag.' [5], xxxiii. 503-516 (Abs.); 'Nature,' xliii. 551-552 (Abs.); Beiblätter,' xvi. 531-532 (Abs.) 'C. R. cxii. 661-663; 'Zeitschr. f. physikal. Chem.' viii. 144 (Abs.) List of the Chief Abbreviations used in the above Catalogue. Full Title. American Journal of Science (Silliman's). Annales Agronomiques. Arch. f. d. gesammte Arch. f. exper. Pathol. u. Arch. néerland. Astr. Nachr. Annalen der Chemie und Pharmacie (Liebig). Annales de Chimie. Annuaire de l'Observatoire de Bruxelles. Annalen der Physik und Chemie [Neue Folge] (Wiedemann). Archives des Sciences Physiques et Naturelles (Genève). Archiv für pathologische Anatomie und Physiologie und für klinische Medicin (Virchow). Archiv für die gesammte Physiologie (Pflüger). Archiv für experimentelle Pathologie und Pharmakologie. Archives néerlandaises des Sciences exactes et natu- Atti d. R. Accad. d. Lincei Atti della Reale Accademia dei Lincei. Beiblätter. Beiblätter zu der Annalen der Physik und Chemie (Wiedemann). Bulletin Astronomique (Observatoire de Paris). Bull. Soc. Min. de France Bulletin de la Société Minéralogique de France. Chem. Centr. Chemisches Centralblatt. C. R. Comptes Rendus de l'Académie des Sciences (Paris). Abbreviated Title. Dingl. J. Gazz. chim. ital. Göttingen. Nachr. List of the Chief Abbreviations-continued. Nachrichten von der Georg-August-Universität und der königl. Gesellschaft der Wissenschaften (Göttingen). Handl. Svensk. Vet. Akad. Handlingar K. Svenska Vetenskaps Akademien (Stock Journal de Physique. Journal of Physiology. Journal für praktische Chemie. J. Russ. Phys. Chem. Soc.. Journal of the Russian Physico-Chemical Society (in * J. Soc. franç. de Phys. Math. u. naturwiss. Ber. aus Ungarn. Mem. spettr. ital. Monatsb. Akad. Berl. Monatsh. f. Chem. Month. Not. Roy. Ast. Soc. Oefvers. af K. Vet. Akad. Phil. Mag. Phot. Mittheil.. Phys. Review Phys. Revue Proc. Phys. Soc. Proc. Roy. Inst. Proc. Roy. Soc.. Russian). Journal de la Société française de Physique. Mathematische und naturwissenschaftliche Berichte aus Memorie della Società degli spettroscopisti italiani. Monatshefte für Chemie (Wien). Monthly Notices of the Royal Astronomical Society of London. Oefversigt af K. Svenska Vetenskaps Akademiens London, Edinburgh, and Dublin Philosophical Magazine. Photographische Mittheilungen (Vogel). Physical Review. Physikalische Revue. Procedings of the Physical Society of London. Proceedings of the Royal Institution of Great Britain. Rec. des. trav. chim. des Recueil des travaux chimiques des Pays-Bas. Pays-Bas. Rend. R. Accad. d. Lincei Rendiconti della reale Accademia dei Lincei. Sitzungsberichte der Akademie der Wissenschaften zu Sitzungsberichte der königlich baierischen Akademie zu Sitzungsberichte der Akademie der Wissenschaften zu Sitzungsberichte der phys.-medicinischen Societät zu Skandinavisches Archiv für Physiologie (Leipzig). Anzeiger der k. Akademie der Wissenschaften zu Wien. Zeitschrift für anorganische Chemie. Zeitschrift für Krystallographie und Mineralogie. Zeitschrift für physikalischen und chemischen Unterricht. Zeitschrift für physiologische Chemie. An International Standard for the Analysis of Iron and Steel.Sixth Report of the Committee, consisting of Professor W. C. ROBERTS-AUSTEN (Chairman), Sir F. ABEL, Mr. E. RILEY, Mr. J. SPILLER, Professor J. W. LANGLEY, Mr. G. J. SNELUS, Professor TILDEN, and Mr. THOMAS TURNER (Secretary). (Drawn up by the Secretary.) In the previous report of this Committee it was stated that the work of the British analysts was completed, so far as the four original standards were concerned, and that the results of the analyses conducted by the other Committees were in good agreement with those published by this Committee. The remaining standard, No. 5, has now been analysed by Messrs. G. S. Packer, J. Pattinson, E. Riley, and J. E. Stead, and the results of their investigations are as follows: Generally speaking, the agreement in these results is very good. The carbon determination by Mr. Packer is somewhat high, and this is explained by the fact that Mr. Packer's determinations were made in the laboratory of Messrs. J. Brown and Co., Sheffield; and as the operations were conducted in the centre of a large works, with dust inevitably in constant circulation, it was not found possible, even by carefully covering the vessels in which the analyses were performed, to obtain strictly concordant results with the combustion of samples so low in carbon content. For this reason, at Mr. Packer's suggestion, his numbers are not reckoned in calculating the mean carbon percentage. The quantity of material operated upon in estimating such small amounts of carbon is necessarily large, and during filtration and other processes in a dusty atmosphere sufficient carbon is added to seriously affect the results. The manganese determinations vary from a minimum of 0.258 to a maximum of 0.317, and the figures have been carefully checked by the analysts. This difference raises an important question as to the relative accuracy of the methods employed, though such inquiries are outside the present work of the Committee. Several applications have been received during the past year for samples of the standards from chemists engaged in investigations as to the relative accuracy of various methods of analysis, and it is hoped, now the standards have been prepared and their composition determined with very considerable accuracy, that they may be frequently employed for such purposes of reference. As the work of the Committee is now completed it is proposed to shortly deposit the standards with the Board of Trade, as originally suggested, or with some other suitable authority, where they will be at the public service. The Committee do not ask for reappointment. |