Whosoever shall unlawfully and maliciously throw, or cause to fall or strike, at, against, into, or upon any Engine, Tender, Carriage, or Truck used upon any Railway, any Wood, Stone, or other Matter or Thing, with Intent to injure or endanger the Safety of any Person being in or upon such Engine, Tender, Carriage, or Truck, or in or upon any other Engine, Tender, Carriage, or Truck of any Train of which such first-mentioned Engine, Tender, Carriage, or Truck shall form Part, shall be guilty of Felony, and being convicted thereof shall be liable, at the Discretion of the Court, to be kept in Penal Servitude for Life or for any Term not less than Three Years,—or to be imprisoned for any Term not exceeding Two Years, with or without Hard Labour.