How does carson appeal to authority in paragraph 27? where else in the selection does she appeal to authority?

Carson uses description and examples with a specific suggestion to appeal to authority particularly to the Food and Drug Administration and the manufacturers and owners of stores. At the onset, she mentioned that a clear warning such as big skull and crossbones to indicate that the product is very dangerous would alert the buyers and keep their children away from it. Besides, it would be regarded with caution and not be displayed near edible products and soaps which are familiar household items. She intensifies the need for warning by citing the serious effects of the said product by comparing it to other insecticides and poisons which are not only harmful when ingested but also flammable that will endanger more people and property. The beginning and ending of the paragraph are aimed towards action from the authorities of health and safety.