INDEX. 



1153 



Magnetism and Twist, Their Relations in Iron and 

 Nickel. Part I. By Professor Cargill G. 

 Knott, 377. 



Manganese-Steel. The Thermal Conductivity and 

 Specific Heat of Manganese-Steel. By A. 

 Crichton Mitchell, B.Sc, 947. 



Mariopteris, 326, 409. 



Megapfiyton, 410. 



Meteorology, Mean Scottish for the last Thirty- 

 Two Years (prior to 1888). By C. Piazzi 

 Smyth, late Astronomer-Royal for Scotland, 

 185. 



Mitchell (A. Crichton), B.Sc. On the Thermal 

 Conductivity and Specific Heat of Manganese- 

 Steel, 947. 



Mountain Building, Experimental Researches on, 

 By Henry M. Cadell, 337. 



Myodocopa, 513. List of Species, 521. 



N 



Neuropteris plieata and Neuropteris rectinervis. By 



Robert Kidston, 313. 

 Neuropteris, 321, 326, 408. 

 Nickel, Relations between Magnetism and Twist in, 



377. 



O 



Odontopteris, 321, 409. 



Ostracoda collected by H. B. Brady, LL.D., in the 



South Sea Islands. By George Stewardson 



Brady, M.D., LL.D., 489. 



Pecopteris, 322, 409. 



Phosphines. On Benzyl Phosphines and their De- 

 rivatives. By Professor E. A. Letts and R. F. 

 Blake, 527. 



Phreoryctes, The Anatomy, Histology, and Affinities 

 of. By Frank E Beddard, M.A., 629. 



Pinnularia, 324, 415. 



Plarr (Dr G.). Determination of the Curve, on one 

 of the Coordinate Planes, which forms the 

 Outer Limit of the Positions of the Point of 

 Contact of an Ellipsoid of Revolution, which 

 always touches the Three Planes of Reference, 

 471. 



Platycopa, 517. List of Species, 521. 



Podocopa, 490. List of Species, 519. 



Pregnancy and Puerperium. See Uterus. 



Prince (E. E.), B.A., and Professor W. C. 

 M'Intosh. On the Development and Life 

 Histories of the Teleostean Food- and other 

 Fishes, 665. 



R 



Ravenhead Collection of Fossil Plants. By Robert 



Kidston, 391. 

 Rhacophyllum, 410. 

 Rhacopteris, 422, 424. 



S 



Scottish Meteorology for the last Thirty-Two Years 

 {prior to 1888.) By C. Piazzi Smyth, late 

 Astronomer-Royal for Scotland, 185. 



Sigillaria, 323, 327, 413. 



Smyth (C. Piazzi), late Astronomer-Royal for Scot- 

 land. Mean Scottish Meteorology for the last 

 Thirty-Two Years (prior to 1888), discussed for 

 Annual Cycles, as well as Super- Annual Curves, 

 on the Basis of the Observations of the Scottish 

 Meteorological Society, as published by the 

 Registrar-General of Births, Deaths, &c, in 

 Scotland, after being computed for that officer 

 at the Royal Observatory, Edinburgh, 1 85. 



Eight Years' Observations of the New Earth 



Thermometers at the Royal Observatory, Edin- 

 burgh, 1879-1888, 287. 



Sphenophyllum, 321, 401. 



Sphenopteris, 403, 424, 426. 



Sphyropteris, 402. 



Steel. See Manganese-Steel. 



Sternbergia approximata, 324, 414. 



Stigmaria, 324, 329, 413, 414. 



Strophanthus hispidus: its Natural History, Chemis- 

 try, and Pharmacology. By Professor Thomas 

 R. Fraser, M.D., F.R.SS. Lond. and Edin., 

 955. 



Stylocalamites, 400. 



Tait (Professor), Sec. R.S.E. On the Foundations 



of the Kinetic Theory of Gases. Part III., 



1029. 

 (XV.) Special Assumption as to Molecular Force, 



1031. 

 (XVI.) Average Value of Encounter and of Im- 

 pact, 1031. 

 (XVII.) Effect of Encounter on Free Path, 



1035. 

 (XVIII.) Average Duration of Entanglement, and 



consequent Average Kinetic Energy, 1037. 

 Appendix : — A. Loss of Energy by Impact, 1038. 



B. Law of Distribution of Speed, 1039. C. 



Viscosity, 1039. D. Thermal Conductivity, 



1040. 

 Teilia Quarry Fossil Plants. By Robert Kidston, 



419. 



