— LSX1V — 



elektrom Kraften vid vàtskors strommande genom ròr. ■ — Elander. Om iverkan af urinàmme pa sul- 

 fonklorider. — Gyldén. Om en punkts rSrelse i en sferoids eqvatorsplao. — Hanson. Om norra 

 Bohulslàns vertebratfauna. — tlolm. Om Wahlenbergs Illaenus crassicauda. — Leffler Mittag. Om 

 integration af Vissa differentialeqvationer. — Lindman. Om nagra differentialeqvationen. — Id. Nagra 

 definita integraler. — Lindstrom. Analyser af tva minerai fran Langban. — Lunelgren. Om scaphites 

 binodosus fran Kaseberga. — Malm. Om moriporre. — Id. Om Emuns luftrorsàck. — Moberg. Resebe- 

 ràttelse. — Nathorst. Om Williamsonia Carruthers. — Nilsson. Om Ytterbiums atomwigt. — Id. Om Scan- 

 diums atomwigt och nagra scandium foreningar. — Id. ocb Pettersson. Om Berylliums atomvigt och 

 egenskaper. — ld. id. Om de sallsynta jordarternas och deras sulfats molekylarvàrme och-volym. — 

 Schenlz. Reseberàttelse. — Theorin. Om vàxters taggar och borst. — Walilskdl. Om naftalins under- 

 svafvelsyrlighets derivat. — Widman. Metod att framstàlla metatoluidin. 



+ Proceedings of the London mathematical Society. N. 170-177. London, 1881. 8.° 



170-71. Cookie. On Binomial Biordinals. — Routh. Some applications of coniugate functions. — 

 Craig. On Abel's Theorem. — Glaisher. On some definite Integrals. — 172-75. Roberti. On the 

 tangents drawn from a point to a Nodal Cubie. — G-njley. On the Flexure of equilibrium of a Skew 

 Surface. — Id. On the geodesie curvature of a curve on a surface. — Roberts. On certain tetrahedra 

 specielly related to four Spheres meeting in a Point. — ld. On Di Grave's Theorem on confocal 



Conics Crofton. On operative Symbols in the DifTerential Calculs. — Harry Rari. On the general 



equations of tbe second degree in Tetrahedral coordinates. — Roberls. On the coordinates of a 

 tangent line to the curve of intersection of two Quadrics. — Walker. Quaternion proof of M. Samuel 

 Iiobert's Theorem of four co-intersecting Spheres. — Carpmael. Some solutions of Kirkman's 15-school- 

 girl problem. — > 176-177. Genese. On a system of coordinates. — Jeffery. On Spberical quartics, with a 

 quadruple Cyclic are and a triple Focus. — Mannheim. Sur les surfaces parallèles. — Cayley. On the 

 Gaussian Theory of surfaces. 



^Proceedings of the r. geographical Society. Voi. III. N. 8. N. m, s. London, 1881. 8." 



Whymper. A journey among the great Andes of the Equator. — Look. Askja , the largest 

 Volcano of Iceland. 



fproceedings of the royal Society. Voi. XXXI. n. 206-211 ; XXXII. n. 212, 213. 

 London, 1881. 8.° 



206. Harlley. Kesearches on the Action of Organic Substances on the Ultra-Violet Rays of the 

 Spectrum. Partili. An Examination of Essential Oils. — Mac Jftm». Researches into the Colouring-matters 

 of Human Urine, with an Account of the Separation of Urobilin. — 207. Nilson and Pettersson. On 

 .the Essential Properties and Chemical Character of Beryllium (Glucinum). — ld. id. On the Molecular 

 Heat and Volume of the Rare Earths and their Sulphates. — Russell. . On the Absorption Spectra of 

 Cobalt Salts. — Unwin. On the Priction of Water against Solid Surfaces of Different Degrees of 

 Roughness. — Vines, On the Chemical Composition of Aleurone-Grains. — Dixey. On the Ossification 

 of the Terminal Phalanges of the Digits. — Lockyer. On a Sun-Spot observed August 31, 1880. — 

 Graham Reti. On Methods of Preparing Selenium and other Substances for Photophonic Experiments. — 

 208. Herschel. On a Simplified Form of the Torsion-Graviraeters of Broun and Babinet. — Schróter. 

 Note on the Microscopie Examination of some Fossil Wood from the Mackenzie River. — Hopkinson. 

 The Electrostatic Capacity of Glass. — Prilchard. The Cochlea of the Ornithorhynchus plalypus 

 compared with that of ordinary Mammals and of Birds. — Hennessey. On Actinometrical Observations 

 made in India at Mussooree and Delira in October and November, 1879. — Ramsay. On the Criticai 

 Point. — Mac Munn. Further Researches into the Colouring-matters of Human Urine, with an Account 

 of their Artificial Production from Bilirubin, and from Hasmatin. — Thorpe. Note on the Determi- 

 nation of Magnetic Inclination in the Azores. — Crookes. On Heat Conduction in Highly Rarefied 

 Air. — Gore. On the Thermo-Electric Behaviour of Aqueous Solutions with Platinum Electrodes. — 

 Id. Inflaence of Voltaic Currents on the Diffusion of Liquids. — Id. Experiments on Electric Osmose. — 

 Royslon-Pigott. Microscopical Researches in High Power Definition. — 209. Gresswell Raber. Researches 

 on the Minute Structure of the Thyroid Gland. — Schàfer. Note to the Paper on the Structure of 

 the Immature Ovarian Ovum in the Common Fowl and in the Rabbit. -- - Thudichum. Note on a 



