350 



PROCEEDINGS OF THE AMERICAN ACADEMY 



1883. S—Ti>i 



Feb. 27 — 18.8 div. 



" 28 +189.8 div. 



" 28 + 83.9 div. 



Normal Equations. 



—1065.1= 28 a + 97.636 6 = —32.-34 



—76975.0 = +97.63 a + 260.67 b a = +75.0 



EQUATIONS OF CONDITION BETWEEN T AND S. 



Series II. 



