Vol. 55 : Part III. 



MEMOIRS AND PROCEEDINGS 



OF 



THE MANCHESTER 



LITERARY & PHILOSOPHICAL 



SOCIETY, 1 9 10-19 II. 



CONTENTS. 

 Memoirs : 



XXI. Dioptriemeters. By Prof. W. W. Haldane Gee and Arthur 



Adamson. With 8 Text-figs. ------- pp. i — 16^ 



{^Issued separately, June 1st, iQil). 



XXII. The Development of the Atomic Theory : {7) The Rival Claims 



of William Higgins and John Dalton. By A. N. Meldrum - pp. i— 11. 



(^Issued separately , Jutie I2ih, tgii). 



XXIII. On a Specimen of Osleocella septentrionalis (Gray). By Sydney J. 



Hickson, F. R.S, With 3 Text figs. - - - - - -pp. 1—15. 



(Issued separately, June l6th, igii). 



XXIV. An Account of some Remarkable Steel Crystals, along with 



some Notes on the Crystalline Structure of Steel. By Ernest 



F. Lange, M.I.Mech.E., etc. 2 Pis. pp. i— 15. 



(Issued separately, A ugust 2lst, igii). 



Proceedings - - - - - - - - - -pp- xxiii. — xxviii* 



Annual Report of the Council, with Obituary Notices of Prof. S. 

 Cannizzaro, Rev. Robert Harley, F.R.S., Prof 

 J. H. van't Hoff, and Sir William Huggins, O.M., 

 K.C.B., F. R.S. - - - - - - - pp. xxix — xlii. 



Treasurer's Accounts --------- pp. xliii. — xlv. 



List of the Council and Members of the Society - - - pp, xlvi. — Ixi. 



List of the Awards of the Dalton Medal - - - - p. Ixi. 



List of the Wilde Lectures ------- pp. ixii — Ixiii. 



List of the Presidents of the Society - - - - - pp, Ixiv, — Ixv 



Title Page and Index --------pp. i. — xii. 



MANCHESTER: 



36, GEORGE STREET. 



Ipricc ZbKZC SbilKngs. 



October 31st ^ igii. 



