JOURNAL 



OF THE 



ASIATIC SOCIETY OF BENGAL, 



Part II.— NATURAL SCIENCE, &e. 

 No. 1.— 1903. 

 CONTENTS. 



Page, 

 I. — A Study on the Constitution of Dimer cur ammonium 



Salts.— By P. C. Ray, D.Sc. ... ... ... 1 



II. — Bimer cur ammonium Nitrate. — By P. C. Rat, D.Sc. ... 4 



III.— The Function of the Vasiform Orifice of the Aleurodidge. 



— By H. W. Peal, F.E.S. ... ... ... 6 



IV. — The " Green Bug " and other Jassids as food for Birds. — 



By H. W. Peal, F.E.S. ... ... ... 7 



V. — Notes on the occurrence of Motacilla taivana (Swinhoe) 



near Calcutta. — By Capt. H. J. Walton, I. M.S. ... 9 



