Three loci are involved in the next experiment. Since eosin is an allelomorph of cherry, it should be expected to give with sable the same cross-over value as did cherry. When eosin (red) sable females were crossed to (red) vermilion (gray) males, the daughters were wild type and the males were eosin sable. Inbred these gave the classes shown in table 11. {38} TABLE 11.--_P_1 eosin sable [female] x vermilion [male][male]. F_1 wild-type [female][female] x F_1 eosin sable [male][male]._ +------+--------------------------+ | | | | | F_2 females. | | | | | +------------+-------------+ | | w^e s | w^e | |Refer-| ---------- | -----+----- | | | | s | |ence. +------+-----+------+------+ | | | | | | | | | | | | | |Eosin |Wild-|Eosin.|Sable.~ | |sable.|type.| | ~ | | | | | | +------+------+-----+------+------+ | | | | | | | 26 I | 132 | 171 | 113 | 109 | | 26'I | 96 | 146 | 86 | 78 | | +------+-----+------+------+ |Total.| 228 | 317 | 199 | 187 | +------+------+-----+------+------+ +------+---------------------------------------------------------+ | | | | | F_2 males. | | | | | +---------------+--------------+-------------+------------+ | | w^e s | w^e v | w^e | w^e v s | |Refer-| ----------- | -----+----- | --------+-- | ---+---+-- | | | v | s | v s | | |ence. +-------+-------+-------+------+------+------+------+-----+ | | | | | | | | | | | | | |Eosin | | |Ver- |Eosin | | ~ | Eosin |Ver- |ver- |Sable.|Eosin.|milion|ver- |Wild-| ~ | sable.|milion.|milion.| | |sable.|milion|type.| | | | | | | | |sable.| | +------+-------+-------+-------+------+------+------+------+-----+ | | | | | | | | | | | 26 I | 127 | 163 | 75 | 76 | 37 | 14 | 2 | 5 | | 26'I | 74 | 128 | 76 | 59 | 18 | 21 | 4 | 3 | | +-------+-------+-------+------+------+------+------+-----+ |Total.| 201 | 291 | 151 | 135 | 55 | 35 | 6 | 8 | +------+-------+-------+-------+------+------+------+------+-----+