Mumps
2 of the 7 encyclopedias on this shelf carry an entry for Mumps. Both are reproduced below, so you can see where they agree and where they differ.
Collier's New Encyclopedia (1921)
a contagious disease communicated by the saliva, sometimes epidemic, and characterized by a specific swelling and inflammation in the parotid and salivary glands, commonest in children, en, and in boys rather than girls. It occurs mostly in spring and autumn, in cold and damp weather. MÜNCHEN. See MUNICH. MÜNCHEN-GLADBACH. See GLAD- BACH. MÜNCHHAUSEN, BARON HIERO- NYMUS KARL FRIEDRICH VON (münh'hou-zen), a German-Russian military officer; born in Bodenwerder, Hanover, May 11, 1720. He served in his youth as an officer in the Russian cavalry, and passed the close of his life in his native country, delighting in narrating the most astounding stories of his warlike exploits in the campaign against of 2, 5 and 6. The least common multiple the Turks in 1737-1739, and thereby gainthis; ing the reputation of being the greatest liar of his time. He died in Bodenwerder, Feb. 22, 1797. A compilation of his prodigious "yarns" was published in London in 1785, under the title of "Baron Münchausen's Narrative of His Marvelous Travels and Campaigns in Russia."
Aiton's Encyclopedia (1910)
an acute infectious disease characterized by inflammation of the salivary glands. Although not positive, physicians are of the opinion that the disease, like measles, scarlet fever , and whooping cough , is due to a specific bacterium or bacillus; that is to say, a minute plant, which is communicated from person to person and breeds rapidly in the saliva. Boys are more apt to be afflicted than girls. The disease shows itself from seven to fourteen days after exposure. It reaches its height in from three to four days, then goes down rapidly, lasting from four to ten days. There seems to be no way of cutting it short. The danger from mumps is so slight that the swollen check of the patient is ordinarily a source of amusement to his friends.