Contents of the last Ten Issues of SCIENCE PROGRESS 



No. 



(continued) 



50. OCTOBER 1 918 



Recent Advances in Science. 

 Articles : 

 The 100-inch Reflecting Telescope of the 

 Mount Wilson Solar Observatory, by 

 H. Spencer Jones, M.A., B.Sc 

 Some Aspects of Animal Colouration 

 from the Point of View of Colour 

 Vision. Part II., by J. C. Mottram, 



\V. Edridge Green, 



M.B., and F. 

 M.D., F.R.C.S. 

 Popular Science : 

 The Preservation of Game-Birds and its 

 Relation to Agriculture, by Walter 

 E. Collinge, D.Sc, F.L.S. 

 Correspondence, Notes, Essays, Essay- 

 Reviews, Reviews, Books Received. 



No. 51. JANUARY 191 9 



Recent Advances in Science. 

 Articles : , 



Sur la Loi de 1' Evolution Irreversible, 



par B. Petronievics, Ph.D. 

 The Geological Aspects of the Coral- 

 Reef Problem, by Prof. W. M. Davis, 

 Ph.D., ScD. 



Popular Science : 

 Science and the International Language, 

 by E. B. R. Prideaux, M.A., D.Sc, 

 and H. C. Prideaux, M.A. 



Correspondence, Notes, Essays, Essay- 

 Reviews, Reviews, Books Received. 



Price 6s. net 

 No. 52. APRIL 1919 



Recent Advances in Science. 

 Articles : 



Recent Work on the Spectra of X-Rays, 



by Prof. W. H. Bragg, C.B.E., D.Sc, 



F.R.S. 



The Ice-Age Question Solved, by Major 

 R. A. Marriott, D.S.O. 



Growth and Division of Cells as Affected 

 by Radiation, by Sidney Russ, D.Sc. 

 Popular Science : 

 Some Scientific Aspects of Cold Storage,, 

 by Ingvar Jorgensen, Cand. Phil., 

 D.I.C., and Walter Stiles, M.A. 

 Correspondence, Notes, Essays, Essay 

 Reviews, Reviews, Books Received- 



No. 53. 

 Recent Advances in Science. 

 Articles : 



The Water Economy of Maritime Plants, 

 by T. G. Hill, A.R.C.S., F.L.S. 



Some Paleolithic Problems, by H. Bury, 

 M.A., F.G.S. 



JULY 1919 



Popular Science : 



Some Scientific Aspects of Cold Storage, 

 Part II, bv Ingvar Jorgensen, 

 Cand. Phil., ' D.I.C., and Walter 

 Stiles, M.A. 

 Correspondence, Notes, Essays, Essay- 

 Reviews, Reviews, Books Received. 



No. 54. OCTOBER 1919 

 Recent Advances in Science. 



Articles : 



Optical Activity, by F. D. Chattaway, 

 F.R.S., D.Sc. 



( «ii ) 



Impact Testing of Metals, by F. C Thomp- 

 son, D.Met., B.Sc. 



The Capillary Circulation, by Prof. W. M. 

 Bayliss, F.R.S., D.Sc. 



Correspondence, Notes, Essays, Essay- 

 Reviews, Reviews. 



