The inconsistent hyphenation of the following: assassin-bugs/assassin bugs; bedbug/bed-bug (and bedbugs); beekeeper/bee-keeper (and beekeepers); blackflies/black-flies; blow-flies/blow flies; bluebottles/blue-bottles; bot-flies/bot flies; bristlelike/bristle-like; browntail/brown-tail; coextensive/co-extensive; deer-flies/deer flies; dorsocentral/dorso-central; ectoparasites/ecto-parasites; endoparasites/endo-parasites; flesh-fly/flesh fly (and flesh flies); hotbed/hot-bed; housefly/house-fly (and houseflies); horsefly/horse-fly (and horse flies); horse-manure/horse manure; midsummer/mid-summer; preeminently/pre-eminently; sandfly/sand-fly (and sandflies); screw-worm fly/screw worm fly; stable-fly/stable fly; subequal/sub-equal; subfamily/sub-family; subtropical/sub-tropical; tapeworm/tape-worm (and tapeworms); today/to-day; tsetse-flies/tsetse flies; widespread/wide-spread; wormlike/worm-like. Inconsistent use of diaeresis in Aëdes/Aedes Inconsistent spelling of the following: defence/defense; disc/disk; hemolysis/hæmolysis; hemolytic/hæmolytic; hexapod/hexopod; Levaditi/Lavaditi; metalescent/metallescent; Mitzmain/Mitzman; Neveau-Lemaire/Neveau-Lamaire; offence/offense; Phthirus/Phthirius Portschinsky/Portchinsky/Portchinski; travelled/traveled; ventra-/ventro-; Villot/Villet; Wohlfartia/Wohlfahrtia; Inconsistent use of ligatures in Taenia/Tænia toxine, insiduous, efficaceous, cyanid are spelt as in the original In the first paragraph of chapter XII, "the student might not be lead" is as in the original. Lead perhaps should be led There is no Figure 147 in the original In the bibliography, the entry for Vaughan without a text specified is as in the original End of the Project Gutenberg EBook of Handbook of Medical Entomology, by William Albert Riley and Oskar Augustus Johanssen