FABRICATION OF EDGES, JOINTS, SEAMS, AND NOTCHES. There are numerous types of edges, joints, seams, and notches used to join sheet-metal work. We will discuss those that are most often used.
Essential Oils for Flea Treatment. Commonly recommended essential oils for flea treatment in cats are cedar, eucalyptus and lavender. These are all well-known flea repellents that have been deemed safe when used properly. Lavender is the most common and has been shown in university studies to repel fleas.
The essential oils that work well against biting insects (mosquitoes, flies, ticks, fleas) are: 1  cinnamon oil (mosquitoes) 2  lemon eucalyptus or regular eucalyptus oil (mosquitoes, ticks, and lice) 3  citronella oil (mosquitoes and biting flies)  castor oil 1  (mosquitoes) orange oil (fleas)  rose geranium (ticks and lice)