October $th, 1920.] Proceedings. i. 



PROCEEDINGS 



OF 



THE MANCHESTER LITERARY AND 

 PHILOSOPHICAL SOCIETY. 



General Meeting, October 5th, 1920. 



Sir Henry A. Miers, M.A., D.Sc, F.R.S. {President), in the 



Chair. 



Mr. William Dixon, Broadwater, £3, Pine Boad, Didsbury, 

 Manchester ; and Mr. George Davidson Elsdon, F.I.C., Public Analyst, 

 Municipal Laboratory, 11+3, Regent Road, Salford; were elected Ordinary 

 Members of the Society. 



Ordinary Meeting, October 5th, 1920. 

 Sir Henry A. Miers, M.A., D.Sc, F.R.S. {President), in the 



Chair. 



A vote of thanks was passed to the donors of the books upon 

 the table. Mr. C. L. Barnes, M.A., drew attention to several 

 works, including : — "A Monograph of the British Orthoptera," 

 by W. J. Lucas (8vo., London, 1920), and " The British Charo- 

 phyta," Vol. 1, " Nitellece," by J. Groves and Bullock Webester 

 (8vo., London, 1920), published by the Ray Society, purchased; 

 " The Black Smoke Tax " (8vo., Manchester, 1920), and " Coal 

 Fires " (8vo., Manchester, 1920), published and presented by 

 The Manchester Air Pollution Advisory Board; "Through 

 Lapland with Skis and Reindeer/' by F. H. Butler (8vo., 

 London, 1919), presented by the Author; " Festuca rubra near 

 Cardiff/' by W. O. Howarth (8vo., London, 1919), presented by 

 the Author; "Report on the Quantum Theory of Spectra/' by 

 L. Silberstein (8vo., London, 1920), presented by Messrs. Adam 

 Hilger, Ltd. ; " The Royal Exchange/' by A. E. W. Mason 

 (i2mo., London, 1920), presented by The Royal Exchange 

 Assurance -Co.; " To og Tredive Praedikener . . M. Jens 

 JVilss4>n . . .," by A. Brandrud and O. Kolsrud (4-to., Christiania, 

 1917), presented by The University of Christiania; "The British 

 Marine Annelids/' Vol. Ill, part ii, by W. C. Mcintosh (fol., 



