PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



-"' November 15, 1883. 



PAGE 



I. MaTionia Aquifolia as a Nurse of tlie i Wheat Mildew (Puccinia 



- graminis). By Charles B. Peowright 1 



II. Description of Teeth of a Large Extinct (Marsupial ?) Grenus. Scepar- 



nodon Ramsay. By Professor Owen, C.B., E.R.S 3 



III. Evidence of a Large Extinct Monotrerne {^Echidna Ramsayi, Ow.) from 

 the Wellington Breccia Cave, New South Wales. By Professor 

 Owen, C.B., E.R.S 4 



IY. Correction to a paper " On the Determination of Terdet's Constant " 

 published in the "Phil. Trans.," 1877. By J. E. H. GtOrdon", 

 M.S.T.E. . 4 



V. Note on the Irregularities in Magnetic Inclination on the West Coast of 



Scotland. By T. E. Thorpe, E.R.S., and A. W. Rucker, M.A. . 5 



VI. On the Circulation of Air observed in Kundt's Tubes, and on some 



Allied Acoustical Problems. By Lord Rayleigh, D.C.L., E.E.S. . 10 



VII. The Influence of Bodily Labour upon the Discharge of Nitrogen. By 



W. North, B.A., E.C.S 11 



November 22, 1883. 



I. On the Formation of Ripple-mark in Sand . By Gr. H. Darwin, 

 E.R.S., Plumian Professor and Eellow of Trinity College, Cam- 

 bridge 18 



II. On the Atomic Weight of Titanium. By T. E. Thorpe, E.R.S. . . 43 

 For continuation of Contents see Mh 'page of Wrapper. 



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