802 REPORTS ON THE STATE OF SCIENCE. — 1915. 



Gordon, J. W. A ' New ' Object Glass by Zeiss. ' Journal Quekett Mic. Club,' 



xn. 515-520. 1916. 

 Graham, J. Ivon. The Absorption of Oxygen by Coal. Part V. — The Influence 



of Temperature on the Rates of Absorption by different parts of the Barnsley Bed. 



' Trans. Inst. Min. Eng.' xLvra. 521-534. 1915. 

 (Midland Inst. Eng.). The Absorption of Oxygen by Coal. Part VII.— The 



Influence of Moisture upon the Rate of Absorption, and the Question of Bacterial 

 Oxidation. ' Trans. Inst. Min. Eng.' XLix. 35-43. 1915. 

 Harper, W. E. Atmospheric Conditions suitable for the 72-inch Reflector. 



' Journal Royal Astr. Soc. of Canada,' vm. 172-179. 1914. 

 The Orbits of the Spectroscopic Components of 50 Draconis. ' Journal Royal 



Astr. Soc. of Canada,' ix. 165-167. 1915. 

 The Orbit of the Spectroscopic Binary 1149 Groombridge. ' Journal Royal 



Astr. Soc. of Canada,' ix. 168-169. 1915. 

 Hawke, E. L. Meteorological Report for 1913 and for 1914. ' Report Hampstead 



Sci. Soc. 1913,' 28-30. 1914 ; 1914, 28-30. 1915. 

 Henshaw, R. Stevenson. Returns of Rainfall in Dorset in 1913. ' Proc. Dorset 



N. H. A. F. C XXXV. 206-219. 1914. 

 HoPKiNSON, John. The Climate of Hertfordshire, deduced from Meteorological 



Observations for 25 years, and Rainfall Observations for 70 years. ' Trans. Herts. 



N. H. S. F. C XV. 195-206. 1915. 

 The Weather of the Year 1913 in Hertfordshire. * Trans. Herts N. H. S. F. C 



XV. 225-238. 1915. 

 Hunter, A. F. Is there a Morning Maximum of the Aurora ? ' Journal Royal 



Astr. Soc. of Canada,' ix. 121-125. 1915. 

 Innes, R. T. a. The Triple Stellar System ( Virgo E 1757. ' Trans. Royal Soc. 



of South Africa,' rv. 146-146. 1914. 

 Kapteyn, J. C. On the Structure of the Universe. ' Journal Royal Astr. Soc. of 



Canada,' vm. 145-159. 1914. 

 Klotz, Otto. Location of Epicentres for 1913. ' Journal Royal Astr. Soc. of 



Canada,' vm. 160-171. 1914. 

 Earthquakes, Phases of the Moon, Sub-Lunar and Sub-Solar Points. ' Journal 



Royal Astr. Soc. of Canada,' vm. 273-281. 1914. 

 Deformation of the Earth by the Moon. ' Journal Royal Astr. Soc. of Canada,' 



vm. 375-389. 1914. 

 Magnetic Observations, 1914. ' Journal Royal Astr. Soc. of Canada,' ix. 170- 



172. 1916. 

 Gravity Stations, 1914. ' Journal Royal Astr. Soc. of Canada,' ix. 176-179 



1915. 

 Lucas, Joseph. A Cross-Channel Current at St. Leonards. ' Hastings and East 



Sussex Naturalist,' n. 124-125. 1915. 

 McDiARMiD, F. A. Errors in Longitude, Azimuth, and Latitude Determinations — 



II. ' Journal Royal Astr. Soc. of Canada,' vm. 318-340. 1914. 

 Melvill, Thomas. Observations on Light and Colours. 'Journal Royal Astr 



Soc. of Canada,' vm. 231-272. 1914. 

 Merlin, A. A. C. Eliot. On the Minimum Visible. ' Journal Quekett Mic. Club,' 



xn. 385-392. 1914. 

 Morgan, J. D. (N. Staff. Inst. Eng.). Coal-dust Explosions. ' Trans. Inst. Min 



Eng.' xLix. 220-229. 1915. 

 Motherwell, R. M. The New Photographic Telescope of the Dominion Observa- 

 tory. ' Journal Royal Astr. Soc. of Canada,' vm. 305-306. 1914. 

 Mum, Prof. James. The Constitution of Matter. ' Proc. Glasgow Royal Phil Soo ' 



xlv. 76-93. 1914. 

 MuiR, Dr. Thomas. Note on a Theorem of Ph. Gilbert's regarding the Differentia- 

 tion of a Special Jacobian. ' Trans. Royal Soc. of S. Africa,' iv. 139-142. 1914. 

 Note on Rosanes' Functions resembling Jacobians. ' Trans. Royal Soc of 



S. Africa,' rv. 157-161. 1914. 

 Properties of Pfaffians, with their Analogues in Determinants. ' Trans. Royal 



Soc. of S. Africa,' iv. 205-214. 1915. 

 Note on the Product of a Special i^-line Determinant by its Central Minor of the 



(i^-4)th Order. ' Trans. Royal Soc. of South Africa,' rv. 273-277. 1915. 

 Nelson, Edward M. A New Object-Glass by Zeiss, and a New Method of Illumina- 

 tion. ' Journal Quekett Mic. Club,' xn. 363-366. 1915. 



