Also tumors may occur in parts of the body in which there is no tissue capable of forming structures which may be present in the tumors.

The theory, however, is not adequate, but it may be among the factors.
The problems concerned in the nature and cause of tumors are the most important in medicine at the present time.

No other form of disease causes a similar amount of suffering and anxiety, which often extends over years and makes a terrible drain on the sympathy and resources of the family.

The only efficient treatment for tumors at the present time is removal by surgical operation, and the success of the operation is in direct ratio to the age of the tumor, the time which elapses from its beginning development.

It is of the utmost importance that this should be generally recognized, and the facts relating to tumors become general knowledge.