Pr- oe.Roy: Soc. Qj- , Vol. Z . 



Plate BZ: 



M3/es & fe/vja/es. 

 Deaf'hs from Cancer per /OOO c^ses cf death from 3// causes. 



Fem\24\Z3 I?/ \26\23\ll \?6\20 \z4-\^5^g\34- \2^\3Si\3S>\35\33>\37\3s\37\3S | 37| 



^.IV.rox.l/^fy.S/-isb9ne /8S>4: 



