CHAPTER XII

KEYS TO THE ARTHROPODS NOXIOUS TO MAN 257-317

Crustacea. Myriapoda, or centipedes and millipedes. Arachnida (Orders of). Acarina or ticks. Hexapoda (Insecta). Siphunculata and Hemiptera (lice and true bugs). Diptera (mosquitoes, midges, and flies). Siphonaptera (fleas).

APPENDIX

Hydrocyanic acid gas against household insects 318-320 Proportion of ingredients. A single room as an example. Fumigating a large house. Precautions.

Lesions produced by the bite of the black-fly 321-326

BIBLIOGRAPHY 327-340

INDEX 341-348