-/-r- 







■^-^-"^-^-i-^^ -i-i-i-* -c-» -t-i -t-t; k I --1 ' ^„ 

 ^-j...,^,^-^ < tf 4< 4-t v-t- T^ *-^*— . 



-1'=^ 







11 



mm 



'^:3J 





CELL-CUPS, QUEEN-CELl 



After the Doolittle method. (Fn 



