— CIV — 



of Coral Reefs and Islands. — Geikie. Eock-Weathering, as illustrated in Edinburgh Churchyards. — 

 Thomson. On a Realised Sulphurous Acid Steam-Pressure Thermometer, and ori a_ Sulphurous Acid 

 Steam-Pressure Differential Thermometer. — Id. On a Differential Thermoscop? founded on Change 

 of Viscosity of Water with Change of Temperature. — Id. On a Thermomagnetic Thermoscope. — 

 kl. On a Constant Pressure Gas Thermometer. — ■ Sang. On the Occulta tion of the Star 103 Tauri 

 (b. a. C. 1572). — Dtyth. On Currents produced by Friction between conducting Substances , and 

 on a new form of Telephone Eeceiver. — Piazzi Smith. Note on the Present Outbreak of Solar 

 Spots. — Macfarlane. Positive and Negative Electric Discharge between a Point and a Piate and 

 between a Ball and a Piate. — Mills. Eesearches in Thermometry. — Haycraft. Preliminary Notice 

 of a Method for the Quantitative Determination of Urea in the Blood. — Geddes. On the Phenomena 

 of Variation and Cell-Multiplication in a Species of Enteromorpha. — Tait. On the Accurate Measu- 

 rements of High Pressures. — Turner. On Two Masks and a Skull from Islands near New Guinea. — 

 Forbes. On an Ultra-Neptunian Planet. — Chrystal. Nou-Euclidean Geometry. — Tail. Note on the 

 Theory of the « lo Puzzle ». — De Burgh Birch. On the Constitution of Adult Bone-Matrix and 

 the Functions of Osteoblasts. — Gray. On Two Unrecorded Eggs of the Great Auk (Alca impennisi 

 discovered in an Edinburgh Collection ; with Eemarks on the former existence of the Bird in 

 Newfoundland. — Chrystal. On a New Telephone Eeceiver. — Id. On the Differential Telephone, 

 and On the Application of the Telephone generally to Electrical Measurement. — Gray. On the 

 Determination of the Specifìc Heat of Saline Solutions. — Buchanan. On a « Navigational » Sounding 

 Machine. — Id. On the Compressibility of Glass. — Macfarlane. Suggestions on the Art of Signal- 

 ling. — Ferguson. Note on the Wire Microphone. — Gibon. On the Peroxides of Zinc , Cadmium, 

 Magnesium, and Aluminium. — De Burgh Birch. On the Processes in Subepiphysal Bone Growth 

 and some points in Bone Eesorption. — Chrystal. On the Wire Thelephone and its Application to 

 the Study ot the Properties of strongly Magnetic JMetals. — ■ Piazzi Smyth. Notice of the Com- 

 pletion of the new Eock Thermometers at the Eoyal Observatory , Edinburgh , and what they 

 are for. — Traquair. Eeport on Fossil Fishes collected by the Geological Survey of Scotland in 

 Eoxburghshire and Dumfriesshire. Part I. — Ganoidei. — Peach. On Some New Crustacea from the 

 Cementstone Group of the Calciferous Sandstone Series of Eskdale and Liddesdale. — Piazzi Smyth. 

 Gaseous Spectra in Vacuum Tubes. — Sydney Marsden. On the Diffusion of an Impalpable Powder 

 into a Solid Body. — MacGregor. On the Variation with Temperature, of the Electric Eesistance of 

 certain Alloys. — Herdman. Preliminary Eeport on the Tunicata of the «Challenger» Expedition. — 

 Sang. Description of New Astronomical Tables for the Computation of Anomalies. — Macfarlane. 

 The Discharge of Electricity through Olive Oil- — Guthrie. Note on the Colouiing of Maps. — Tait. 

 Eemarks on the previous Communication. — Blylh. Note on the Wire Telephone as a Transmitter. — 

 Sydney Marsden. Furtther Note on Graphitoid Boron and the Production of Nitride of Boron. 

 1 'Proceedings of the sdentine rneetings of the zoological Society of London for 1881. 

 Part III. London, 8.° 



Smith. On the Genus Gouldia of C. B. Adams , and on a new Species of Grassatella. — Bull. 

 Contributions to the Systematic Arrangement of the Asteroidea. — I. The Species of the Genus 

 Asterias. — Watson. Additional Observations on the Anatomy of the Spotted .Hyaena. — Thomas. 

 On the Indian Species of the Genus Mus. — Smith. Note on Cypraea decipiens. — Id. Descriptions 

 of two new Species of Shelles from Lake Tanganyika. — Shelley. List of Birds recently collected 

 by Dr. Eirk in Eastern Africa. — Butler. On a Collection of Lepidoptera from Western India, 

 Beloochistan, and Afghanistan. — Parker. Note on some Points in the Anatomy of the Caecum in 

 the Eabbit (Lepus cuniculus) and Hare (Lepus limidus). — Bock. List of Land and Freshwater 

 Shells collected in Sumatra and Bomeo, with Descriptions of new Species. — Sowerby. Description 

 of eight new Species of Shells. — Forbes. Notes on the Anatomy and Systematic Position of the 

 Jacanàs (Parridae). — Taczanowski. Description d'une nouvelle Belette du Pérou septentrional. — 

 Kirby. On the Hymenoptera collected by Prof. I. Bayley Balfour in Socotra. — Francis. On the 

 Eange of Apogon ellioti. — Balfour. On the Development of the Skeleton of the Paired Fins of 

 Elasmobranchii, considered in Relation to its Bearings on the Nature of the Limbs of the Verte- 

 brata. — Bldnford. On a Collection of Persiau Eeptiks recently added to the British Museum. — 



