20 SURVEYS. 



causes, should be included in equations of alternate route, 

 capitalizing same if necessary, at the ruling rate of interest. 



III. 



Surveys and Construction. 



SURVEYS. 



The railway company will furnish instruments, transporta- 

 tion, camp equipage and subsistence while parties are em- 

 ployed in the field. Each individual will provide himself with 

 all personal articles, such as drawing instruments, clothing, 

 blankets, etc. 



All survey lines diverging from any constructed line must 

 be connected with it by measurement, so that the initial point 

 can be located upon the map of such constructed line. 



Stations will be uniformly 100 ft. long each, and numbered 

 consecutively. It is not necessary to set stakes at each station 

 in all cases on preliminary lines; this may be left to the dis- 

 cretion of the chief of the party. Mark stakes on alternate 

 lines with distinguishing letter A, B. C, etc. Mark stakes on 

 located lines "L." Mark point of curvature "P. C." or "P. S.;" 

 point of tangency "P. T." on the stakes of the beginning and 

 end of all curves. Mark stakes at the "P. C." or "P. S." with 

 the degree and direction of the curve. 



Ties must be secured to all township and subdivision lines 

 whenever crossed. Give station number of intersection, angle 

 of intersection, distance along the line to the nearest corner 

 or quarter corner. Whenever possible, make the intersection 

 by running through between the two corners. 



When line is located through villages or towns, take neces- 

 sary measurements, tieing the center line to the plats, and 

 secure tracings of the town plats as contained in the county 

 register's office, with all dates and certificates contained in 

 original, and send these copies to the office of the Chief 

 Engineer. 



Tie in all property and land lines, and locate all buildings 

 that are near the line. 



Check all angles by needle reading, or by doubling the angle 



