List of the Contributors. vii 
Jellett, Rev. J. H., B.D., S.F.T.C.D. page. 
A further communication on Optical Saccharometry, with 
special reference to the Sugar Beets grown in Ireland in 
the year 1872, 475 
On the question of Chemical Equilibrium, . . . . 513 
King, William, Sc. D., and Rowney, T. H., Ph.D. 
On the Greological Age and Microscopical Structure of the 
Serpentine Marble or Ophite of Skye (Plate xiv.), . . 132 
On the Mineral Origin of the so-called Eozoon Canadense," . 140 
Macalister, Alexandee, M.D. 
On muscular anomalies in human anatomy (abstract), . . 127 
On the muscular anatomy of the Civet and Tayra, . . . 506 
On the anatomy of Chseropsis Liberiensis (Plate xxviii.), . 494 
On the muscular anatomy of the Gorilla (Plate xxix.), . . 501 
On the anatomy of Aonyx (Plates xxx. to xxxii.), . . . 539 
Mackintosh, H. W., B.A. 
On the myology of the genus Bradypus, . . . .517 
Malet, John C, M.A. 
Some Theorems in the Reduction of Hyper-elliptic Integrals 
(abstract), 555 
Moore, David, Ph. D., F.L.S. 
A Synopsis of the Mosses of Ireland (Plate xxiv.), . . 329 
More, A. O., F.L.S. 
On recent additions to the Flora of Ireland, . .. . . 256 
Moss, Richard J., F.C.S. ' 
See Draper, Harry N., F.C.S. 
M'DoNNELL, Robert, M.D., F.R.S. 
On a New Theory of Nervous Action as regards the 
transmission of Sensation along the Nerves, ... 45 
O'Reilly, J. P., C.E. 
Note on a proposed New Method of disposing the Barometric 
Column, so as to furnish directly enlarged Indications 
without the intermediary of a system of transmission of 
movement (Plate xi.), . . . . . . , 3X 
On a new form of Ooniometer (Plate xx.), .... 294 
See also Sullivan, Wm. K., Ph. D. 
Purser, J. M., M.D. 
Report on the Researches of Cohnheim on Inflammation and 
SuppuT'ation, . . . . . . . . .156 
RowNEY, T. H., Ph. D. 
See King, William, Sc. D. 
