34 Mr H. F. Baker, On Ternary Quadrics. [Nov. 25, 1889. 



where a form and its leciprocal, as well as forms of the same 

 type, are counted as being of the same kind. 



Note. There are often identical integral relations among 

 forms of the same type. These are not here set down. Further, 

 if we allow algebraic functions of any rational kind, all the simul- 

 taneous concomitants can be expressed in terms of fifteen con- 

 comitants (Forsyth, American Journal of Mathematics, XII. p. 54). 



COUNCIL FOR 1889—90. 



President. 

 John Willis Clark, M.A., F.S.A., Trinity College. 



Vice-Presidents. 



E. J. Routh, Sc.D., F.R.S., Peterhouse. 



C. C. Babington, M.A., F.R.S., Professor of Botany. 



G. D. Liveing, M.A., F.R.S,, Professor of Chemistry. 



Treasurer. 

 R. T. Glazebrook, M.A., F.R.S., Trinity College. 



Secretaries. 



J. Larmor, M.A., St John's College. 

 S. F. Harmer, M.A., King's College. 

 A. R. Forsyth, M.A., F.R.S., Trinity College. 



Ordinary Members of the Council. 



J. E. Marr, M.A., St John's College. 



J. C. Adams, Sc.D., F.R.S., Lowndean Professor. 



A. S. Lea, Sc.D., Gonville and Caius College. 



T. McK. Hughes, M.A., F.R.S., Woodwardian Professor. 



J. W. L. Glaisher, Sc.D., F.R.S., Trinity College. 



W. N. Shaw, M.A., Emmanuel College. 



W. Gardiner, M.A., Clare College. 



W. Bateson, M.A., St John's College. 



A. Cayley, Sc.D., F.R.S., Sadlerian Professor. 



G. H. Darwin, M.A., F.R.S., Plumian Professor. 



W. J. Lewis, M.A., Professor of Mineralogy. 



W. H. Gaskell, M.D., F.R.S., Trinity Hall. 



