Complex sentence: Aylsworth began making the first batches of experimental compounds for cylinder record "waxes" during the "perfected phonograph" era, from 1887-mid 1888, hundreds of compounds were experimented with, different fatty acids, esters, gums and resins.
Split into simpler sentences: Aylsworth began making the first batches of experimental compounds for cylinder record "waxes" during the "perfected phonograph" era, from 1887-mid 1888. Hundreds of compounds were experimented with, different fatty acids, esters, gums and resins.