CONTENTS. 



Pt. I. Published Nov. 5th, 1898. 



Preparation of Hyponitrite from Nitrite through Oxamido- 

 sulphonate. By E. Divers, Prof., 31. D., D.Sc, etc. and 

 'V.YLk^k, D.Sc, etc 1 



Absorption of Nitric Oxide in Gas Analysis. By E. Divers, 



Prof., M.D., D.Sc, etc 9 



Interaction of Nitric Oxide with Silver Nitrate. By E. Divers, 



Pro/., 3I.D., D.Sc, etc 11 



Preparation of Pure Alkali Nitrites. By E. Divers, Prof., 



M.Ü., D.Sc, etc 1.5 



The Reduction of an Alkali Nitrite by an Alkali Metal. 



By E. Divers, Prof., Bl.D., D.Sc, etc 19 



Hyponitrites : their Properties and their Preparation by 

 Sodium or Potassium. By E. Divers, Prof., M.D., D. 

 Sc, etc 33 



Pt. II. Published March 14th, 1899. 



On the Geologic Structure of the Malayan Archipelago. 



By B. KotO, Pro/., Ph.D., etc. {With Plate I) S3 



Pt. III. Published June lOth, 1899. 



Horizontal Pendulums for the Mechanical Registration of 

 Seismic and Other Earth Movements. By F. Omori, 

 Pro/., D.Sc. {With Platen II-XII) 121 



Note on the Preliminary Tremor of Earthquake Motion. 



By F. O.MORi, Pro/. D.Sc {With Plates XIII-XVI) 147 



Earthquake Measuremsnt at Miyako. By F. Omori, Prof D. 



Sc., and K. HiRATA. {With Plates XVII-XXlfl) IGl 



Ethyl ammoniumsulphite. By E. Divers and M. (Jgavva ... 197 



