PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



VOL. XXXI. 



No. 210. 



3 



February 3, 1881. 



CONTENTS. 



PAGE 



I. Upon the Cause of the Striation of "Voluntary Muscular Tissue. By 

 John Beery Hayceapt, M.B., B.Sc., F.E.S.E., Senior Physiological 

 Demonstrator in the University of Edinburgh. (Plate 5) . . . 360 



II. Description of some Remains of the Gigantic Land-lizard (Megalania 

 prisca, Owen.) from Australia. Part III. By Professor Owen, C.B., 

 F.E.S., &c. . . . . . . 380 



III. On a Method of Destroying the Effects of slight Errors of Adjustment in 



Experiments of Changes of Eefrangibility due to Relative Motions in 

 the Line of Sight. By E. J. Stone, E.R.S., Director of the Eadcliffe 

 Observatory, Oxford . . . 381 



IV. On an Improved Bimodular Method of computing Natural and Tabular 



Logarithms and Anti-Logarithms to Twelve or Sixteen Places with very 

 brief Tables. By Alexander- J. Ellis, B.A., F.E.S., E.S.A. . . 381 



V. On the Potential Eadix as a Means of Calculating Logarithms to any 

 Eequired Number of Decimal Places, with a Summary of all Preceding 

 Methods Chronologically Arranged. By Alexander J. Ellis, B.A., 

 E.E.S., E.S.A 398 



VI. On the Influence of Temperature on the Musical Pitch of Harmonium 



Eeeds. By Alexander J. Ellis, B.A., E.E.S., F.S.A. . . .413 



I. On the Influence of the Molecular Grouping in Organic Bodies on their 

 Absorption in the Infra-red Eegion of the Spectrum. By Captain W. 

 de W. Abnet, E.E., E.E.S., and Lieutenant- Colonel Festing, E.E. . 416 



II. Experiments undertaken during the Summer, 1880, at Yvoire (1,230 

 feet), Courmayeur (3,945 feet), and the " Col de Geant " (11,030 feet), 

 on the Influence of Altitude on Eespiration. By William Maecet, 



HI. On a New Seismograph. By J. A. Ewing, B.Sc, F.E.S.E., Professor of 



Mechanical Engineering in the University of Tokio, J apan . . . 440 



February 10, 1881. 



M.D., E.E.S, 



418 



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