This item is part of a series of letters, species lists, and index cards regarding species identification, especially insect identification. This letter to Morris Fraser discusses worm identification and control.
This item is part of a series of notes, essays, and correspondence relating to insect research. This item describes methods for transporting cottony cushion scale in detail.
This item is part of a series of notes, essays, and correspondence discussing insects. This item may have been part of a letter, and requests cottony cushion scales for feeding Vedalia beetles.