Context: Broca, being what today would be called a neurosurgeon, had taken an interest in the pathology of speech. He wanted to localize the difference between man and the other animals, which appeared to reside in speech. He discovered the speech center of the human brain, today called Broca's area after him. His interest was mainly in Biological anthropology, but a German philosopher specializing in psychology, Theodor Waitz, took up the theme of general and social anthropology in his six-volume work, entitled Die Anthropologie der Naturvölker, 1859–1864. The title was soon translated as "The Anthropology of Primitive Peoples". The last two volumes were published posthumously.

Question: If Broca were alive today, what would his profession be?
Answer: neurosurgeon

Question: What particularly interested Broca?
Answer: the pathology of speech

Question: What did Broca discover in the human brain?
Answer: speech center

Question: What did the German philosopher Waitz specialize in?
Answer: psychology

Question: How many volumes was Waitz work?
Answer: six

Question: What did Broca leave neurosurgery to study?
Answer: Unanswerable

Question: Where did Broca think the similarity between man and other animals resided?
Answer: Unanswerable

Question: Who wrote a six-volume work on Biological anthropology?
Answer: Unanswerable

Question: What did Waitz write in the 18th century?
Answer: Unanswerable