CONTENTS. 



MEMOIRS. 



1. A Discussion of the Theorems of Lambert and Adams on 

 Motion in Elliptic and Hyperbolic Orbits. By L. V. 

 Meadowcroft, B.A., M.Sc. With 2 Text-figs. .. pp. 1 — 5 



(Issued separately, July 30th, IQ20.) 



II. Morphogenesis of Brachiopoda. I. Reticularialineata (Martin), 

 Carboniferous Limestone. By W. E. Alkins, M.Sc. 

 With 1 Plate and 2 Text-figs. ... ... ... pp. 1 — 11 



(Issued separately, December 30th, IQ20.) 



III. Latent Polarities of Atoms and Mechanism of Reaction , with 

 special reference to Carbonyl Compounds. By Professor 

 Arthur Lapworth, D.Sc, F.R.S. With 3 Text-figs. pp. 1 — 16 

 (Issued separately, October 22nd, 1Q20.) 



IV. The Conjugation of Partial Valencies. By Professor Robert 



Robinson, D.Sc, F.R.S. With Text-figs pp. 1 — 14 



(Issued separately, March 22nd, IQ21.) 



V. Ancient Mines and Megaliths in Hyderabad. By Major 



Leonard Munn, R.E. With 1 Map pp. 1 — n 



(Issued separately, February 28th, 1Q2I.) 



PROCEEDINGS 



„ of the Chemical Section 



Annual Report of the Council, 1920 



Treasurer's Accounts 



List of the Council (1919-20) 



List of the Wilde Lectures 



List of the Special Lectures 



List of the Awards of the Dalton Medal. 



List of the Presidents of the Society 



pp. i. — xxvii. 

 pp. xxviii. — xxxviii. 

 pp. xxxix. — xlii. 

 pp. xliii. — xlvi. 

 p. xlvii. 

 pp. xlviii. — xlix. 

 p. xlix. 

 p. xlix. 

 pp. 1.— li. 



