373. Whoever buys, hires or otherwise obtains possession of any [person under the age of eighteen years with intent that such person shall at
Explanation I.-Any prostitute or any person keeping or managing a brothel, who buys, hires or otherwise obtains possession of a female under the age of eighteen years shall, until the contrary is proved, be presumed to have obtained possession of such female with the intent that she shall be used for the purpose of prostitution.