“As the telegraph already performed the function of instantly sending a message down a wire to an anxious party on the other end” (Telecommunications History Group).
The telegraph performed and functioned so well that people thought the telephone was unnecessary. Because of the telegraph being able to send messages, Bell’s offer to buy patents to the telephone was refused. The telegraph’s origins were from experiments by Professor Joseph Henry. This discovery inspired Samuel F. B. Morse, who later created Morse code.
The picture is describing how the telephone works and parts that transmit sound. The first picture shows Elisha Gray talking through the telephone. In the next picture, wires are connected to another part we’re the person can listen to the message by picking up a tool.
“Conceived the idea of "electronic speech" while visiting his hearing-impaired mother in Canada.” (PBS Wisconsin).
Alexander Graham Bell came to the US as a teacher of the deaf. He got the idea of the telephone from his hearing-impaired mother. Alexander and his assistant, Thomas A. Watson, figured out how to transmit actual speech through a 60 feet wire.