534 PROCEEDINGS OF SECTION G. 



We thus have ^, =i — dl.j. ' I ,.<lr = — — l«(/e Ix 



civ 



= — — -! log, ^' + X loiiv s + x^ 1<)0„ // + c' !<><% (/ ' 



(tX [ ) 



::= — logg s — 2.^* log,, /' — c'' log,, r log, /j ( h) 



since A,. — k^^h^''(i' • 



Expression (6) msiy he jiut iii the foiin A + C.r + jSc^', 



■where A ■=. — log^ .s- rr vy<« — o-yj- 

 C = — 2 log, /? 



and B — — lug, c log,, r/ 



J/ 



_ /3 log c 



J/-(C-1) 



and where iV/ denotes th« modulus the common logarithms {=: "43429), 

 and o, jS, 7 have the significance previously assigned to them. 



The numerical values for the experience under review, viz., 

 CommonweaJth males aged 0-4, tor the decennium 1901-10, are a? 

 follows : — 



A =z .00816 



C = — .OOll.-} 



fi = . 21971. 



Making use of these values in the formula /xx ^^ -^ + ^''' + ^'c-*, the 

 force of mortality at ages to 4 is found to be as foIloAvs : — 



Table XII. 



J^'oi-ce ot Mwitalitj, 

 A<je, ' (lotnnionwealth Males, 1901-l'i. 



-22787 



1 -03439 



2 -00931 

 .1 -00519 

 4 • 00369 



9. Comparison ok Malk ani> Femalk Experience. 



The data of th€ Commonwealth female experience for ages to 

 4 for the decennium 1901 -10 have been giyen in Tables I. to V., above. 



