— LXXXVII — 



struit pour le laboratoire municipal de Paris. — Piltschikoff. Re'fractomètre à lentille 

 pour liquide. 



f Journal fur die reine und angewandte Mathematik. Bd. CV, 1, 2. Berlin, 1889. 



Gùnther. Ueber lineare Differentialgleichungen, deren Integrale nur einen singularen 

 Punkt im Endlichen besitzen und ini Unendlichen sich regalar verhalten. — Frobenius. 

 Ueber die Jacobischen Functionen dreier Variabeln. — Sturm. Rein geometrische Un- 

 tersuchungen tìber algebraische Minimalfiàchen. — Lipschitz. Untersuchung der Eigen- 

 schaften einer Gattung von unendlichen Reihen. — Kronecker. Bemerkungen tiber die Dar- 

 stellung von Reihen durch Integrale. — Tano. Sur quelques théorèmes de Dirichlet. — 

 Kónigsberger. Ueber eine Determinantenbeziehung in der Theorie der Differentialgleichun- 

 gen. — Czuber. Berechnung der krummen Oberflache und des korperlichen Inhalts eines 

 Kugel-Ausschnitts zwischen zwei beliebigen, die Kugel und einander schneidenden Ebenen. 



f Journal of the chemical Society. N. 321, 322, august 1889. London. 



Broion and Morris. Determination of the Molecular Weights of the Carbohydrates. 

 Part II. — Reynolds. Researches on Silicon Compounds and their Derivatives. Part V. On 

 Silicotetraphenylamide, Para- and Ortho-silicotetratolylamides, ce- and /?-Silicotetranaphthyl- 

 amides. — Young. The Vapour-pressures of Quinoline. — Id. On the Vapour-pressures 

 and Specific Volume of Similar Compounds of Elements in relation to the Position of 

 those Elements in the Periodic Table. Part I. — Ramsay. The Molecular Weights of the 

 Metals. — Warington. The Amount of Nitric Acid in the Rain-water at Rothamsted, with 

 Notes on the Analysis of Rain-water. — Perkin. The Action of the Chlorides of Propionyl 

 and Butyryl on Phenol. — Id. Observations on the Melting Points of some Salicylic and 

 Anisic Compounds. — Roscoe and Lunt. On Schiitzenberger's Process for the Estimation 

 of Dissolved Oxygen in Water. — Chapman. Zinc Dextrosate. — Evjan and Cohen. Oxi- 

 dation Products of Acenaphthene. — Ling. Isomerie Change in the Phenol Series. — 

 Meldola and Coste. Benzyl-derivatives of the Phenylenediamines. — Id. and Morgan. 

 Contributions to the Chemistry of the Azonaphthols. — Meldola. The Synthesis of Hetero- 

 geneous Mixed Alkyldiazoamido-compounds. Preliminary Notice.- - Ruliemann and Blackman. 

 Benzophenylhydrazine. 



*■ Journal (The) of the College of science, imperiai University of Japan. Voi. Ili, 

 p. 1, 2. Tokio, 1889. 



Sekiya and Kikuchi. The Eruption of Bandai-san. — Yokoyama. Jurassic Plants 

 from Kaga, Hida, and Echizen. — Kikuchi. On Pyroxenic Components in certain Volca- 

 nic Rocks from Bonin Island. 



f Journal (The) of the Iron and Steel Institute. 1889, n. 1. London. 



Riley. On alloys of Nickel and Steel. — Darby. On the Manufacture of Basic open- 

 Hearth Steel. — Schroedter. On the Progress made in the German Iron Industry since 

 the year 1880. — Wingham. On the influence of Copper on the Tensile Strenghth of 

 Steel. — Sack. On Universal Rolling Mills for the Rolling af Girders and Cruciform 

 Sections. — Pourcel. On the application of thermal Chemistry to Metallurgical Reactions. 

 *" Journal (The quarterly) of pure and applied Mathematics. N. 94. London, 1889. 



Peorsan. On the flexure of heavy beams subjected to continuous systems of load. — 

 Askwith. On possible groups of substitutions that can be formed with three, four, fire, 

 six, and seven letters respectively. — Dixon. On the doubly periodic functions arising out 

 of the curve x 3 -\-y 3 — Saxy = 1. 



1 Journal (The quarterly) of the Geological Society. Voi. XLIV, n. 176; XLV, 

 n. 178, 179. London, 1889. 



176. Marr and Nicholson. On the Stockdale Shales. — Oldham. On the Law that 



