For the purposes mentioned in §§65-6-119 and65-6-127, power is granted to such railroad company to acquire by purchase and to hold such real estate as may be necessary or proper, and to acquire such real estate as may be necessary or proper for such purposes, by condemnation of private property for works of internal improvement as set forth in §§29-16-104 —29-16-124,29-16-202 and29-16-203.