CONTENTS. XIU 



Page 



6. Action of Malt Diastase on Potato-starch Paste. By BeeNARd F. Davis. 

 B.Sc, and Arthur E. Ling, F.I.C 604 



6 The Chemical and Physical Characters of the so-called 'Mad-stone.' 



By Dr. H. C. White 605 



7 On the Reduction of Nitrates by Sewage. By Professor E. A. Letts, 



B.Sc, Ph.D., R. F. Blake, F.I.C, and J. S. Totton, B.A 606 



8. On a Method for the Separation of Cobalt from Nickel, and the 

 Volumetric Determination of Cobalt. By R. L. Taylok, F.I.C 608 



9 Report of the Committee on Isomorphous Sulphonic Derivatives of 

 Benzene (p. 85) 609 



10. Report of the Committee on Isomeric Naphthalene Derivatives (p. 174) 609 



11. Report of the Committee on the Possibility of making Special Reports 

 more available than at present (p. 169) 



609 



FRIDAY, SEPTEMBER 11. 



1. *^ Investigations at Low Temperatures :— -(a) Densities of Solid Hydrogen, 

 Nitrogen, and Oxygen ; (6) Methods of producing Solid Hydrogen and 

 Nitrogen ; (c) Latent Heats, Specific Heats, and Coefficient of Expansion 



of Liquid Hydrogen. By Professor James Dewae, LL.D., F.R.S 609 



2. The Application of Low Temperatures to tlie Study of Biological Pro- 



blems. By Allan Macfadten, M.D 609 



3. Report of the Committee on securing Duty-free Alcohol for Scientific 



Research (p. 170) 612 



4. The Cause of the Lustre produced on Mercerising Cotton under Tension. 



By Julius Hubxee, F.C.S., and William J. Pope, F.R.S 012 



5. Stead's recent Researches as to the Causes and Prevention of Brittleness 



in Steel. By Professor T. Tuenee, M.Sc 613 



6. The Colours of Iodides. By William Ackrotd, F.I.C 014 



7. On Essential Oils. By Dr. 0. Silberead 614 



8. The Cholesterol Group. By R. H. Pickaed, D.Sc 616 



9. On Acrldines. By Professor A. Seniee, Ph.D 616 



10. Sur le Spectre de 'Self-induction' du Silicium et ses comparaisons 

 Astronomiques. Par le Comte A. de GEiMOJfT 620 



11. The Theory of Dyeing. By Professor G. VON Geoegikvics 622 



MONDAY, SEPTEMBER 14, 



1. The Slow Combustion of Methane and Ethane. By William A. Bone, 



D.Sc, Ph.D 624 



2. Fluorescence as related to the Constitution of Organic Substances. By 



John Theodore Heavitt 628 



8. Preliminary Note on some Electric Furnace Reactions under High 

 Gaseous Pressures. By J. E. Petavel and R. S. Hutton 630 



4. The Atomic Latent Heats of Fusion of the Metals considered from the 



Kinetic Standpoint. By Holland Ceompton 631 



5. The Influence of Small Quantities of Water in bringing about Chemical 

 Reaction between Salts. By Edgae Philip Pbeman, D.Sc 631 



6. Report of the Committee on the Relation between the Absorption Spectra 

 and Chemical Constitution of Organic Substances (p. 126) 632 



