L'OS 



Dr. E. L. Mellus. Degeneration in the Spinal [Mar. 1, 



Lansdell, Rev. Henry, D.D. 

 Lockwood, Charles Barrett, 



F.B.C.S. 

 Love, Augustus Edwai'd Hough, 



M.A. 



Lydekker, Richard, B.A. 

 McConnell, James Frederick Parry, 



Surgeon-Major, F.R.C.P. 

 Macewen, Professor William, M.D. 

 Mansergh, James, M.Inst.C.E. 

 Martin, John Biddulph, M.A. 

 Martin, Sidney, M.D. 

 Matthey, Edward, F.C.S. 

 Minchin, Professor George M.,M.A. 

 Mott, Frederick Walker, M.D. 

 Notter, James Lane, Sui-geon- 



Lieut.-Col. 



Ord, William Miller, M.D. 

 Penrose, Francis Cranmer, M.A. 

 Power, William Henry. 

 Purdie, Thomas, B.Sc. 

 Reade, Thomas Mellard, F.G.S. 

 Rutley, Frank, F.G.S. 

 Salomons, Sir David, M.A. 

 Scott, Alexander, M.A. 

 Scott, Dnkinfield Henry, M.A. 

 Seebohm, Henry, F.L.S. 



Smith, Rev. Frederick John, M.A. 

 Stebbing, Rev. Thomas Roscoe 

 Rede, M.A. 

 Stewart, Professor Charles, 



M.R.C.S. 



Stirling, William, M.D. 

 Stuart, Professor T. P. Ander- 

 son, M.D. 

 Sutton, J. Bland. 

 Swan, Joseph Wilson. 

 Thomson, Professor John Millar, 



F.C.S. 



Truman, Edwin Thomas, M.R.C.S. 

 Tnke, Daniel Hack, M.D. 

 Ulrich, Professor George Henry 



Frederick, F.G.S. 

 Veley, Victor Hubert, M.A. 

 Waterhouse, James, Colonel. 

 Webb, Francis William, M.Inst. 



C.E. 



Whymper, Edward, F.R.G.S. 

 Wimshurst, James. 

 Windle, Bertram Coghill Allen, 



M.D. 

 Woodward, Horace Bolingbroke, 



F.G.S. 

 Wynne, William Palmer, D.Sc. 



The following Papers were read : 



I. " Preliminary Note on Bilateral Degeneration in the Spinal 

 Cord of Monkeys (Macacus sinicus) following Unilateral 

 Lesion of the Cortex Cerebri." By E. L. MELLUS, M.D. 

 Communicated by Professor V. HORSLEY, F.R.S. Received 

 December 22, 1893. 



(From the Pathological Laboratory of University College, London.) 



Having for some time been engaged in an investigation of the 

 question as to how far the fibres of each pyramid descend both halves 

 of the spinal cord, I am in a position to state that in the bonnet 

 monkey (Macacus sinicus) the following arrangement prevails. 



Ifethod of Investigation. The animal being etherised, and the left 

 hemisphere of the brain exposed by a single trephine hole (sometimes 

 enlarged afterwards), a small portion of the excitable area of the 



