Answer:
The source is outdated
Explanation:
The source is outdated. According to the title line, this source is from 1913 and is therefore outdated and inappropriate for current cancer developments. A dictionary, even with little information, can be an appropriate source for documented definitions. Additional irrelevant information can be disregarded.
What summary? Sorry I’m just trying to help but I’m confused
Can you give me the author and name of the book ?