226 Report S.A.A. Advancement of Science. 



B 78, 79, 80(2), 84(2); 

 C 86(3), 88(2), 96(3), 97(5), 98(9), 99(6), 

 1900. 

 Suarez, A. B 1882. 



Sylvester, J. J. A 1840, 50(3), 51(4), 52(3), 53(4), 55, 



63(3)' 67, 78, 79(4), 80; 

 B 52, 78, 80, 81, 82(5), 83(3), 84, 85(2); 



C 39. 41, 51. 53> 19, 84(2)' 86, 89(3), 

 90(2), 92. 

 Sziits, N. V. C 1888, 90(2), 95, 98. 



