“The statute says that you must imagine a certain state of affairs; it does not say that having done so, you must cause or permit your imagination to boggle when it comes to the inevitable corollaries of that state of affairs.”
“… is used in interpretation clauses in order to enlarge the meaning of words or phrases occurring in the body of the statute; and when it is so used these words or phrases must be construed as comprehending, not only such things as they signify according to their natural import, but also those things which the interpretation clause declares that they shall include.”
“An interpretation clause of this kind is not meant to prevent the word receiving its ordinary, popular, and natural sense whenever that would be properly applicable; but to enable the word as used in the Act, when there is nothing in the context or the subject matter to the contrary, to be applied to some things to which it would not ordinarily be applicable.”