TEGNER 



5730 



TEHERAN 



exercise of chewing so essential to the health of 

 the teeth. The diet should be one that re- 

 quires considerable mastication, and it may 

 well include such acid fruits as apples, oranges 

 and grapefruit, all of which tend to keep the 

 teeth clean. Another deplorable habit is that 

 of breathing through the mouth, which causes 

 dry, unhealthy gums. This is often due to en- 

 larged tonsils or adenoids (which see), and 

 mothers and teachers everywhere should be on 

 the watch to detect these conditions. It should 

 be borne in mind that bad teeth are often a 

 cause of disease elsewhere in the body, for cavi- 

 ties due to decay mean a possible source of 

 infection. 



Pyorrhoea is one of the most serious diseases 

 of the teeth. Its scientific name, pyorrhoea 

 alveolaris, more accurately suggests its charac- 

 ter, as it is a disease of the alveoli, or sockets. 

 It begins beneath the edges of the gums, where 

 there has been an accumulation of lime depos- 

 its, or tartar, and as the infection 'progresses it 

 gradually destroys the membranes that attach 

 the root of the tooth to the bony socket. As 

 a result, the teeth slowly loosen and cannot 

 be used effectively in mastication. If the in- 

 fection is not checked the teeth must eventu- 

 ally be extracted. 



This, however, is not the only evil effect. 

 Pus is formed in the pyorrhoea pockets caused 

 by the broken-down tissue, and is constantly 

 discharged into the mouth and swallowed. As 

 a result, bacteria are forced into the circulation 

 and carried to remote parts of the body. Dis- 

 eases of the heart, kidneys and other organs, 

 as well as many minor ills, are sometimes di- 

 rectly traceable to infection of the teeth, and 

 for this reason diligent care of the mouth is 

 imperative. The preventive measures outlined 

 above in the subhead Care of the Teeth have a 

 direct bearing on this subject. In case of the es- 

 tablishment of the infection the patient should 

 at once be placed in the care of a reliable den- 

 tist, that the disease may receive proper treat- 

 ment. W.F.L. 



Related Subjects. The following articles in 

 these volumes may be consulted in connection 

 with the study of the teeth : 

 Dentistry Health Habits 



Digestion Mastication 



Fletcherizing Mouth 



TEG'NER, ESAIAS (1782-1846), a Swedish 

 poet, born at Kyrkerud. He was educated in 

 the schools of his native town and at the Uni- 

 versity of Lund, Sweden, where he was a tutor 

 and a Greek lecturer from 1802 to 1810; later 



he was chosen as professor of Greek and re- 

 mained in this work until his appointment as 

 bishop of Vexio in 1824. His first success as a 

 poet came in 1808, when he wrote a war song 

 notable for its vigor. Three years later he wrote 

 the patriotic ode Sv ea, which stirred all Sweden, 

 and for which he was crowned by the Swedish 

 Academy. During this same year he founded 

 the Gothic League of Sweden, established for 

 promoting the study of old Scandinavian his- 

 tory and literature, and to its magazine he con- 

 tributed some of his best critical discussions 

 and verses. 



In 1817 he wrote his famous Song to the Sun, 

 and the outside world began to discuss him. 

 Later appeared his three masterpieces, the ro- 

 mance Axel; the delicate idyll, or pen picture, 

 entitled The First Communion, translated in 

 later years by Longfellow ; and the poem which 

 Goethe called "the old, mighty, gigantic, bar- 

 baric epic," The Story of Frithjof. This latter 

 tale, based upon the ancient legends of North- 

 ern Europe, is by far the best known of all Swed- 

 ish writings, and is said to have been trans- 

 lated twenty times into German and twenty-two 

 times into English.' About the date this poem 

 was finished Tegner fell madly in love with the 

 wife of a Lund official, and for the next fifteen 

 years this passion preyed upon his mind until 

 in 1840 he became insane. Within a year he 

 was pronounced cured, but in 1843 apoplexy 

 seemed to renew the malady, and he did no 

 more work of importance. He wrote a large 

 number of beautiful songs, but his fame rests 

 on The Story of Frithjof. 



TEGUCIGALPA, ta goose gahl'pah, the capi- 

 tal and largest city of the republic of Hondu- 

 ras, in Central America. It is situated on a 

 plain surrounded by mountains, on the Cholu- 

 teca River, about seventy-eight miles from 

 the Gulf of Fonseca, an arm of the Pacific. It 

 is the center of a fertile agricultural district, 

 the most densely populated in the republic. 

 The most imposing building in the city is the 

 cathedral. There are located here a central 

 university with departments of law, medicine, 

 science and political sciences, a military school 

 and a Central Institute for secondary work. A 

 fine ten-arched bridge spans the river and joins 

 Tegucigalpa with its chief suburb, Concepcion. 

 One of the attractive features of the place is 

 a central park containing a statue of one of the 

 chief statesmen of Honduras. Population in 

 1914, 28,950. 



TEHERAN, teh' rahn' , the metropolis and 

 capital city of Persia, is situated at the base of 



