566 • REPORT — 1881. 



1 7. An Analysis of Relationships. 

 By A. Macfarlane, M.A., D.Sc, F.B.S.E. 



The paper contained a summary of the notation and elementary laws of an 

 analytical method of dealing with such questions as, in the simplest cases, may be 

 dealt with graphically by means of the genealogical tree. The subject is a special 

 branch of the algebra of logic, and its development appears to the author to throw 

 much light upon the fundamental principles of that science. The method has been 

 applied to test the Systetns of AffinitAj and Consanguinity of Dr. Morgan of 

 Rochester, New York. 



