Bond furnished by school receiving bodies

No school except the medical schools of the United States Army, Air Force, and Navy shall receive any body under the provisions of this chapter until said school has given bond to the District of Columbia, and the Mayor of the District of Columbia has approved such bond, which said bond shall be in the penal sum of $200 and conditioned that all bodies which said school shall receive shall be used in said District and only for the promotion of the medical, dental, or mortuary sciences.