In what other format besides essays and lecturing did emerson express himself

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

What were some of the new consumer appliances that americans could purchase in the 1920s

How did the french and british differ in the tactics they used to control there empires in asia