456 REPORTS ON THE STATE OF SCIENCE. — ^1919. 



Pickering, W. H. Distances of Two Star Clusters. ' Journal Royal Astr. Soc. 



Canada,' xii. 225-228. 1918. 

 Plaskett, J. S. Notes on the Spectrum of Nova Aquilee, No. 3. ' Journal Royal 



Astr. Soc. Canada,' xn. 350-356. 1918. 

 The Spectroscopic Binary H. R. 8170. ' Journal Royal Astr. Soc. Canada, 



xm. 174-178. 1919. 

 RiOE, James. Discontinuity in the Phenomena of Radiation. ' Proc. Belfast N.H. 



Phil. Soc' 1917-1918, 43-80. 1919. 

 Satteely, John. Radiation and the Temperature of the Sun. ' Journal Royal 



Astr. Soc. Canada,' xm. 33-44. 1919. 

 Stegmann, E. T. The Torsion Problem for Bodies of Revolution. ' Trans. Royal 



Soc. South Africa,' vn. 147-180. 1919. 

 Sutton, Dr. J. R. A Lunar Period in the Rates of Evaporation and Rainfall ? 



' Trans. Royal Soc. South Africa,' viii. 103-109. 1918. 

 SwiNTON, A. E. Meteorological Observations in Berwickshire for the year 1917. 



' History Berwickshire Nat. Club,' xxiii. 457. 1919. 

 yoxTNG, Reynold K. The Spectroscopic Binary 12 Lacertse. ' Journal Royal Astr. 



Soc. Canada,' xm. 45-54. 1919. 



Section B. — Chemistry. 



Drakeley, Thomas James (Manchester Geol. Min. Soc). The Relation between 



the Calorific Values and the Ash Yields of Coal-samjiles from the same Seam. 



' Trans. Inst. Min. Eng.' lvi. 45-56. 1918. 

 Embbey, George. Mineral Waters in and near Gloucester, with some Suggestions 



as to how the important Constituents have been formed. ' Proc Cotteswold 



N.F.C XX. 29-43. 1919. 

 Graham, J. Ivon. The Origin of Blackdamp. ' Trans. Inst. Min. Eng." lv. 294- 



303. 1918. 

 MoiE, Dr. James. Colour and Chemical Constitution : A Study of the Phthaleins 



and related Compounds. ' Tran?. Royal Soc. South Africa,' vn. 5-14. 1918. 

 Colour and Chemical Constitution. . Part 11. — The Spectra of the Mixed Phtha- 

 leins and of the Sulplione-phthaleins. ' Trans. Royal Soc. South Africa,' vii. 



111-116. 1918. 

 Colour and Chemical Constitution. Part III. — Derivatives of the Unknown 



Ortho-paraphenolphthalcin. ' Trans. Roj'al Soc. South Africa,' vii. 123-128. 



1918. 

 Spectrum -Phenomena in the Chromium Comi^ounds. ' Trans. Royal Soc. 



South Africa,' vn. 129-130. 1918. 

 Colour and Chemical Constitution. Part IV. — The Remaining Phthaleins. 



' Trans. Royal Soc. S. Africa,' vn. 183-188. 1919. 



Section C. — Geology. 



Baker, B. A. Report of the Geological Section, 1917. ' Proc Bristol Nat. Soc' 



V. (Ser. 4) 13. 1919. 

 Barke, F. Geological Report. ' Trans. N. Staffs. E.C' lii. 127-130. 1918. 

 Bates, G. F. Inaugural Address. [The Rocks found in the Bore at the Water-house, 



completed during the Summer of 1912.] ' Proc. Perthshire Soc. Nat. Sci.' vi. 



ccxvm.-ccxxrv. 1919. 

 Bell, Alfred. Fossils of the Holderness Basement Clays, with Descriptions of 



New Species. ' The Naturalist for 1919,' 57-59. 

 Belton, Edith. Lower Coal Measures in relation to Fossil Plants and Animals. 



' Proc Bristol Nat. Soc' v. (Ser. 4) 30-38. 1919. 

 Clark, J. The Dry Valleys and Underground River Courses of the StafEordshife 



Moorlands. ' Trans. N. Staffs. F.C Ln. 25-33. 1918. 

 Davison, Ernest H. The Great Perran Iron Lode. ' Report Royal Cornwall 



Polytechnic Soc' iv. n.s., 68-78. 1918. 

 GiT.LiGAN, Dr. Albert. Note on the Soil below the Peat on Moughton Fell. ' The 



Naturalist' for 1918, 309-311. 



