CORRESPONDING SOCIETIES. 803 



Nelson, Edward M. A New Low-power Condenser. ' Journal Quekett Mic. Club,* 



XII. 367-368. 1915. 



Binocular Microscopes. ' Journal Quekett Mic. Club,' xn. 369-380. 1915. 



Patterson, J. A Meteorological Trip to the Arctic Circle. ' Journal Royal Astr. 



Soc. of Canada,' ix. 101-120. 1915. 

 Plaskett, H. H. The Solar Rotation in 1913. ' Journal Royal Astr. Soc. of 



Canada,' vm. 307-317. 1914. 

 Plaskett, J. S. The 72-inch Reflecting Telescope. ' Journal Royal Astr. Soc. of 



Canada,' vni. 180-187. 1914. 

 The Sidereal Univer.se. (Presidential Address.) 'Journal Royal Astr. Soc. 



of Canada,' ix. 37-56. 1915. 

 Preston. Arthur W. Meteorological Notes, 1913. ' Trans. Norfolk and Norwich 



Nat. Soc' IX. 757-764. 1914. 

 Rambaut, a. a. Summary of the Weather during 1914, from Observations at the 



Radcliffe Observatory, Oxford. ' Report Ashmolean Nat. Hist. Soc. 1914,' 41. 



1915. 

 Rodger, Alex. M. Abstract of Meteorological Observations, Perth, 1913. ' Proc. 



Perth.shire Soc. Nat. Sci.' vi. Ixxii.-lxiv. 1914. 

 RoSEVEARE, W. N. A Proof by elementary methods, without complex quantities, 



that ever}- algebraic function (with real coefficients) has factors of the form 



{x''~px-\-q) {p, q, real), and hence, every algebraic equation with coefficients real 



or imaginary has real or imaginary roots, equal in number to the degree of the 



equation. ' Trans. Royal Soc. of South Africa,' iv. 215-221. 1915. 

 On Malet's Proof that every Equation has roots, real or imaginary, equal in 



number to its degree. ' Trans. Royal Soc. of South Africa,' rv. 222-229. 1915. 

 Rutherford, John. Weather and other Notes taken at Jardington during 1913. 



' Trans. Dumfriesshire and Galloway N. H. A. Soc' n. (Third Series), 144-155. 



1914. 

 Astronomical Notes. 1913. ' Trans. Dumfriesshire and Galloway N. H. A. 



Soc' n. (Third Series). 156-157. 1914. 

 South Wales. Royal Institution of. Meteorological Report, June 1913-May 



1914. ' Report Royal Inst. South Wales, 1913-1914,' 61-72. 1914. 

 Schlesinger, Frank. The Problem of Algol. ' Journal Royal Astr. Soc. of Canada,' 



IX. 11-15. 1915. 

 Steadworthy, a. Spectrum of Lightning. ' Journal Royal Astr. Soc. of Canada,' 



vin. 345-348. 1914. 



Black Lightning. ' Journal Royal Astr. Soc. of Canada,' ix. 173-175. 1915. 



Sutton, Dr. J. R. Barometric Variability at Kimberley and elsewhere. ' Trans. 



Roj'al Soc. of South Africa,' iv. 105-121. 1914. 

 A Note on the Temperatures of the Air observed at Mochudi. ' Trans. Royal 



Soc. of South Africa,' iv. 163-167. 1915. 

 Walford, Dr. E. Meteorological Observations in the Society's District, 1913. 



' Trans. Cardiff Nat. Soc' xlvi. 101-119. 1914. 

 Whitelow, E. T. Old World Astronomy. ' Proc Warrington Lit. and Phil. Soc. 



1912-1914,' 22 pp. 1914. 

 WiNMiLL, T. F. The Absorption of Oxygen by Coal. Part II. — The Quantity of 



Oxygen absorbed. ' Trans. Inst. Min. Eng.' XLVm. 603-507. 1915. 

 The Absorption of Oxygen by Coal. Part III. — The Thermal Value of the 



Absorption. ' Trans. Inst. Min. Eng.' XLvm. 508-513. 1915. 

 The Absorption of Oxygen by Coal. Part IV. — The Influence of Temperature. 



' Trans. Inst. Min. Eng.' XLVin. 514-520. 1915. 

 The Absorption of Oxygen by Coal. Part VI. — The Rate of Spontaneous Pleat- 

 ing. ' Trans. Inst. Min. Eng.' xLvm. 535-544. 1915. 

 Wright, Max A. The Great Windstorm of October 27th, 1913. ' Trans. Cardiff 



Nat. Soc' Lxvi. 65-82. 1914. 

 Yorkshire Philosophical Society. Meteorological Returns for 1914. ' Report 



Yorkshire Phil. Soc. 1914,' xix.-xxiv. 1915. 

 Young, Reynold K. A Gnomonic Star Atlas. ' Journal Royal Astr. Soc. of 

 Canada.' ix. 7-10. 1915. 



Section B. — Chemistry. 



BuRRELL, Benjamin Arthur. The Analysis of Ilkley Spa Water. ' Proc. York- 

 shire Geol. Soc.' XIX. 14 17. 1914. 



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