Minutes of Proceedings. 153 



MoisDAY, January 22, 1894. 

 De. J. K. fcGRAM, S.F.T.C.D., President, in the Chair. 



Eev. D. Murphy, s.j., read a Paper " On two Monastic Seals that 

 have lately come into the possession of the Academy." 



The Secretary read, for Sir Eobert Ball, xl.d., f.e.s., a Paper 

 "On the Theory of Pitch Invariance and the Theory of Chiastic 

 Homography ; being the Tenth Memoir on the Theory of Screws." 



Dr. Y. Ball, c.b., f.r.s., read a Paper " On two large hitherto 

 undescrihed Ptuhies, upon which the !N"ames or Titles of four of the 

 Mogul Emperors were engraved." 



Mr. George Coffey, b.a.i., read " ]S"otes on the Classification of 

 Spear-heads of the Bronze Age, found in Ireland." 



Donations to the Library were announced, and thanks were voted 

 to the Donors. 



Monday, Febeuaey 12, 1894. 

 Dr. J. K. Ingraii, s.f.t.c.d., President, in the Chair. 



Prancis Joseph Bigger and Frederick T. Trouton, d.sc, were 

 elected Members of the Academy. 



Dr. Prazer, read a Paper " On Irish Swords of Iron previously 

 undescrihed." 



The Secretary exhibited, for H. T. Knoz, Esq., a Collection of 

 Stone Implements, found in British India, presented by Mr. Knox 

 to the Academy's Museum, and read the following notes thereon : — 



" The Palaeolithic tools bear no marks. They were found among 

 the hills to the jST. "W. of Madras. The l^eolithic tools are marked in 

 vermilion 1, 2, 3. 



"1. These were found on or at foot of the Port Hill of Bellary 

 where it faces the south end of the JN'orth or Human Pace Hill. 



"2. These were found on the S. E. and E. face of the Peacock 

 Hill, and in the fields below. 



" 3. These were found in the Xorth or Human Pace Hill of 

 Bellary. 



