Slide showing a table concerning 'curly dichaete [males] (from Brown Palp [female] Ex 1 x star curly dichaete [male]) x oregon [females].' Slide shows a table concerning 'curly dichaete [males] (from Brown Palp [female] Ex 1 x star curly dichaete [male]) x oregon [females]. Row headings: 'Wild type ([male and female]', 'brown palp, medium [male and female]', 'brown palp, strong [male and female]', '[alpha and beta symbols]'. Column headings: 'non curly non dichaete', 'curly', 'dichaete', and 'curly-dichaete'. Late 19th to early 20th century