Note 5 — Chapter XVI · POISONING BY ANIMALS AND PLANTS.
Reading edition
Oil of lavender is a pleasant means of local protection against mosquitoes, etc. Oil of tar is also in common use. A mixture of equal parts of camphor and chloral, with menthol dissolved in the mixture (camphor and chloral when mixed without other ingredients quickly form a dense fluid like glycerin), gives great local relief from the itching and pain of insect bites.