+------------+---------+---------+---------+-------+---------+ | | | | Eosin | | | | |Wild-type|Wild-type|Vermilion| Eosin |Vermilion| | Reference. |[female].| [male]. | [male]. |[male].| [male]. | +------------+---------+---------+---------+-------+---------+ | 61 C | 101 | 33 | 37 | 9 | 11 | +------------+---------+---------+---------+-------+---------+ These F_1 flies should all be heterozygous for "pink." A pair of wild-type flies which were mated gave a 3 : 1 ratio--wild type 51 to "pink" 18. From the "pinks" which appeared in this cross a stock was made which was lost through sterility. Females tested to males of true pink were also sterile, so that no solution can be given of the case. [6] Purple is an eye-color whose gen is in the second chromosome. [7] The curve published by Miss Stark included by mistake 6 cultures from the succeeding generations, and these coming from only one of the lethals (lethal _sb_) increase its mode so that the mode of the other lethal (lethal _sa_) becomes submerged. If these cultures are taken out the curve shows two modes more clearly. [8] The figures to the left in each double column correspond to the symbols above the heavy line, as, in the first example 6,219 white miniature. The similar figure to the right corresponds to the symbol below the heavy line. If no symbols are present below, as in the first example, the column to the right should be read wild-type. * * * * * Changes made against printed original. Page 24. "two contrary classes, eosin vermilion and bar": 'eosin bar and vermilion' in original. Page 59. "The bristles which are most distorted": 'disorted' in original. Pages 69-70. One or more lines are missing before "5,352". Ibid. "The data just given in table 51": 'table 50' in original. Page 75. "lethal 3_a_ lies at about 19.5.": 'lethal 3' in original. Page 77. Table 58, last "Facet": 'Fecet' in original.