Slide showing six drawings of 'mutants of Drosophila Melanogaster' (fruit fly). Slide shows six drawings of 'mutants of Drosophila Melanogaster' (fruit fly). Diagrams are labelled a - f. Title below image reads: ' Fig. 7 - Mutants of Drosophila melanogaster, arranged in order of size of wings; a, cut,; b, beaded; c, stumpy; d, another stumpy; e, vestigial; f, apterous.' In the upper left corner of front pane there is a label titled 'Makers Newton and Co, 43 Mueum Street, London WC1.' Late 19th to early 20th century