11. — Graphs showing mitotic indices at 10° C, 20° C. and 30° C. 



I 2 3 ^ 5 6 7 8 9 10 II 12 13 1*1- 15 16 n 18 19 



10*' 00" 10^ 10"" 10*' 20"'|o''30"'IO''m'"IO*'50'"Ii''00'"|I*' I0"'1I*' ZO'"m*'30"'11*'40'"i|'' so" IZ*" 00"" IZ*" I0"'i2''20'"i2''30'"i2*'«)'"i2'' 50" l*" 00" 

 I^Q a.m. a.m. a.m. a.m. a.m. a.m. a.m. a.m. a.m. a.m. a.m. a.m. m. p.m. p.m. p m. p.m. p.m. p.m. 



M.I. at lO'C. 

 20°C.,and 30°C. 

 M.I. at ZO°C 



."flit-Av.M.l.at lO'C, 

 20°C.,and 30°C. 



