79. Surveys and levels shall be taken and made of the lands through which the railway is to pass, together with a map or plan thereof, and of its course and direction, and of the lands intended to be passed over and taken therefor, so far as then ascertained; and also a book of reference for the railway, in which shall be set forth:(1) A general description of the said lands;
(2) The names of the owners and occupants thereof, so far as they can be ascertained;
(3) Everything necessary for the right understanding of such map or plan.